Game changer for bedtime
This sleep sack has been an absolute game changer for our bedtime routine. My daughter settles so much faster now that we've been using it every single night.
27 October 2026
0–9 months · one size
4.9/5 136 reviews
Lay them down. They stay asleep. Weighted Sleep Sack
Soft cotton with a gently weighted front, so it feels like your hand resting on their chest. The calm of being held — without your arm stuck under them.
- Feels like being held. A gently weighted front, quilted so it sits evenly.
- The transfer holds. Lay them down asleep and they stay down.
- Longer stretches, fewer 2am resettles.
- Two-way zip, breathable cotton. Machine washable.
Free tracked shippingTracking number by email the day it ships
Free
One on, one in the washAdd a 2nd sack for $40.00 — half price
or 4 payments of $29.99 with afterpay
In stockFlash Sale ends in 00:00:00
- Free shippingTracked, every order
- 30-day promiseKeep it, refunded
- Secure checkoutApple Pay, cards
Try it for 30 nights. If it isn’t for your baby, keep it and we’ll refund you. No forms, nothing to post back. One email, and it’s done.
How does the weight help them settle?
The front of the sack is gently weighted and quilted, so the weight spreads evenly across their chest and tummy. Lying in it feels like your hand resting on them — the same light pressure as being held, which is the thing they’ve been asking you for all night.
That’s why the transfer works: when you lay them down, the held feeling comes with them. And when they stir between sleep cycles, it’s still there, so they drift back off without you.
It does the holding, so your arms don’t have to.
How heavy is it?
Gently weighted — light enough that it simply feels cosy, spread through the quilting on the front so it never sits in one spot. The back is soft cotton, so they lie on the same thing they always have.
Think of a hand resting on them, not a blanket on top of them.
What size do I need?
One size, made for 0 to 9 months. It’s sleeveless with a roomy bottom, so their arms are free and their legs and hips can kick and move the way they like to. It zips over a bodysuit or a light sleepsuit.
One sack, the whole first nine months.
How do I use it at bedtime?
Bath, feed, sack on, lights down, white noise — then lay them on their back in the cot. Dress them for the room underneath: a short-sleeve bodysuit when it’s warm, long sleeves when it’s cooler. The sack replaces loose blankets, so the cot stays clear.
The zip going up becomes their signal that it’s sleep time.
Same routine you already do. One new step that tells them it’s bedtime.
Night changes and washing?
The two-way zip opens from the bottom, so a 2am nappy change happens without taking the whole sack off or waking them up properly. When it needs a wash, it goes in the machine on cold and gentle, then on the line.
That’s why most parents get two: one on, one in the wash.
We already have a sleeping bag. Why this one?
A regular sleeping bag keeps them warm. This one keeps them settled: the gentle weight across the front is the part that feels like being held, and that’s the part a plain bag can’t do.
It goes straight into the routine you already have, in place of the bag you’re using now.
Same bedtime. One difference.
Shipping, returns and who’s behind this?
Marlo Lane is run by parents, for parents. Every order ships free and tracked, and the tracking number lands in your inbox the day it’s on its way.
Returns: 30 nights to try it. If it isn’t for your baby, keep the sack and we’ll refund you, nothing to send back. Email us through the contact page — a real person answers, usually the same business day.
If anything at all is off, email. That’s the entire process.
Hannah W.
Verified buyer
This sleep sack has been an absolute game changer for our bedtime routine. My daughter settles so much faster now that we've been using it every single night.
4 reasons parents swear by it
It feels like being held.
The front is gently weighted and quilted, so the weight sits evenly across their chest and tummy. Lying in it feels like your hand resting on them, which is exactly what they’ve been asking for all night.
The transfer finally holds.
The moment you lay them down used to be the moment they woke. In the sack, the held feeling comes with them into the cot, so you can walk out of the room instead of back to the chair.
Longer stretches, fewer 2am resettles.
Babies stir between sleep cycles all night. When they do, the gentle weight is still there, so they settle back on their own instead of calling for you.
Your evening comes back.
No arm going numb under them, no hour in the recliner, no driveway at 4am. They’re down, they stay down, and the evening is yours again.
Same bedtime. One difference.
Gentle weight on the chest
Feels like being held
Breathable cotton
Two-way zip
Delivery
If it isn’t for your baby
Two of them
Marlo Laneweighted sleep sack
Quilted, even
Yes
Yes
For night changes
Free, tracked
Keep it, refunded
$119.95
A regular sleeping bagthe one in the drawer
No weight
Just warm
Yes
Often one-way
Varies, often paid
Post it back
2 × full price
The second sack is half price, so one is always clean for the night.
136 reviews
The nights it changed.
4.9
136 verified buyers
Got the sack? Tell the next parent what bedtime was like before, what it’s like now, and which night it changed.Write a review
Like a hand on her chest
The weighted front feels just like a gentle hand resting on her chest, and I can honestly say it calms her down within minutes of being zipped in.
25 October 2026
Converted in a week
I was skeptical at first, but after one week I was completely converted. She went from waking three times a night to sleeping through until morning.
24 October 2026
So soft
The cotton is so incredibly soft against her skin. Every time I feel the fabric I'm reminded why I chose this over cheaper options.
23 October 2026Never too hot
I love that it's breathable. Even on warmer nights I never worry about her overheating, which was always my biggest concern with other sleep sacks.
21 October 2026The 2am zip
That two-way zipper is one of the best features I've ever come across in a baby product. I can change her nappy at 2am without fully waking her up.
20 October 2026Nappy changes, no wake-ups
Being able to unzip from the bottom for nappy changes has saved my sanity on so many middle-of-the-night changes. She barely stirs and goes straight back to sleep.
18 October 2026Arms free, happy baby
The sleeveless design is perfect because her arms stay free and she doesn't get frustrated or too hot. It just works so naturally with her sleep.
17 October 2026Room to wriggle
I love that the bottom is roomy enough for her little legs and hips to move around freely. It never looks restrictive or uncomfortable on her at all.
15 October 2026Cosy and safe
The roomy hem means her hips can develop naturally, which was really important to me as a mum. I feel so good knowing she's cozy and safe at the same time.
14 October 2026Perfect over a bodysuit
It goes over her bodysuit perfectly without any bunching or bulk. The fit is just right for layering on cooler evenings.
13 October 2026Works on warm nights too
On milder nights I just pop it over a singlet and she's perfectly comfortable. It's so versatile across different room temperatures.
11 October 2026Washes beautifully
The machine wash feature has been a lifesaver. With a baby, everything needs to be easy to clean, and this washes and dries beautifully.
10 October 2026Still looks brand new
It comes out of the wash looking just as good as the day I bought it. No pilling, no shrinking, no colour fading — just perfect.
8 October 2026Dries so fast
I line dry it and it's ready to use again so quickly. The fact that it dries fast on the line is such a small but lovely touch.
7 October 2026The teal is gorgeous
The teal colour is so gorgeous in person. It photographs beautifully and my daughter looks adorable in it every single night.
5 October 2026Mint is even prettier in person
I went with the mint colour and it's even prettier than it looked on the website. Such a soft, lovely shade that feels calm and peaceful.
4 October 2026Does the job
It does what it's supposed to do and my daughter sleeps reasonably well in it. Nothing to complain about.
3 October 2026Classic grey
The grey is such a classic, timeless choice. It matches everything and never looks tired or worn out after washing.
1 October 2026The white stays white
I ordered the white and it's stayed so bright and clean. I was worried about staining but it washes out perfectly every time.
30 September 2026Matches the nursery
Having four colour options meant I could match it to her nursery perfectly. Little details like that matter so much when you're setting up a sleep space.
28 September 2026One on, one in the wash
I bought two so I always have a clean one ready to go. The multi-pack deal made it such great value and I use both of them constantly.
27 September 2026Three was the right call
We bought three in the end and the buy-two-get-one-free deal made it feel like such a smart purchase. Having a spare on hand at all times is priceless.
25 September 2026The trial sold me
The 30-night trial gave me the confidence to actually try it. Knowing I could keep it and still get a refund if it didn't work felt so reassuring as a first-time mum.
24 September 2026They trusted us
The no-return policy on the trial blew me away. They just trusted that I'd give it a proper go, and it made me trust the brand completely.
23 September 2026Tracked the whole way
Free tracked shipping meant I could see exactly where my order was at all times. It arrived quickly and was packaged so beautifully.
21 September 2026Arrived fast, wrapped beautifully
It arrived faster than I expected and was wrapped so neatly. It would have made the most gorgeous gift for a new mum.
20 September 2026Best baby shower gift
I actually bought one as a baby shower gift for my sister. She messaged me two weeks later saying it had transformed her son's sleep completely.
18 September 2026The zip is her cue
The zip sound has genuinely become a bedtime cue for my daughter. The moment she hears it she seems to know sleep is coming and she relaxes.
17 September 2026A zip-up lullaby
I never expected a zipper to become part of our sleep routine, but here we are. That little zip sound is like a lullaby to her now.
15 September 2026Beautifully made
The quality of the stitching is exceptional. Everything is neat, even, and clearly made to last through hundreds of washes and wriggly babies.
14 September 2026Outlasted every other one
I've had cheaper sleep sacks that fell apart after a few months. This one still looks brand new after six months of nightly use.
13 September 2026The weight is just right
The weight is perfectly calibrated — not too heavy, just enough to feel reassuring without being restrictive. It's such a thoughtful design.
11 September 2026No more startle when I lay her down
She used to startle herself awake when I laid her down, but the weighted front keeps her calm through that transition. I can actually put her down sleeping now.
10 September 2026Down and settled
The moment I lay her in her cot she stops fussing. That weighted pressure seems to tell her body that everything is okay and it's safe to sleep.
8 September 2026Forty-five minutes down to ten
We used to spend forty-five minutes rocking her to sleep. Now we're down to ten, and most nights she's asleep before I even leave the room.
7 September 2026Wish we'd bought it months ago
My husband tried it the first night and couldn't believe how quickly she settled. He joked that we should have bought it months ago.
5 September 2026Even Grandma was impressed
My mother-in-law was visiting and was amazed at how smoothly bedtime went. She said she'd never seen a baby go down so easily.
4 September 2026Our guests noticed
We've had overnight guests who commented on how well our baby sleeps. I always recommend the Marlo Lane sleep sack first thing.
3 September 2026Clear cot, calm mind
The design keeps the cot clear of blankets and loose fabric, which gives me so much peace of mind for safe sleep. I feel completely comfortable leaving her overnight.
1 September 2026Soft and washes well
The fabric is soft and it washes fine. I've had it a few months now and it's held up okay.
31 August 2026One less worry
Knowing there are no loose blankets in the cot has removed a level of anxiety I didn't even realise I was carrying. I sleep better too now.
29 August 2026Safe sleep made easy
Safe sleep guidelines recommend removing loose bedding, and this means she stays warm without any of that risk. It's safe sleep made easy.
28 August 2026Nothing loose in the cot
The fact that it replaces the blanket entirely means her cot is clean and simple. There's nothing to bunch up or get tangled in.
26 August 2026Fits now, fits later
It fits her so well at four months, and I love that it'll last all the way through to nine months. Such good longevity for a baby product.
25 August 2026Worth every cent
Getting so many months of use out of one sleep sack makes the price feel incredibly reasonable. Other baby things are outgrown in weeks.
24 August 2026Two months to six, still fits
She's been in it since she was two months old and it still fits her perfectly at six months. The sizing is really well thought out.
22 August 2026No constant resizing
The 0-9 months range means I'm not constantly buying a new size like with other products. It's stayed relevant through so many growth spurts.
21 August 2026Our year-round sack
I appreciate that it fits over both lighter and heavier layers depending on the season. It's truly a year-round sleep solution.
19 August 2026Summer and winter
In summer she wears just a nappy underneath and in winter she wears a full sleepsuit. The same sack works all year and that's remarkable.
18 August 2026Easy to spread the cost
The Afterpay option made it so accessible at a time when we'd already spent a lot setting up the nursery. Being able to spread the cost was really helpful.
16 August 2026Payment plans helped
I love that they offer payment plans because quality baby products can add up quickly. It made the decision much easier for us.
15 August 2026Worth it
The price point is completely justified when you consider the quality and the results. I've spent more on things that did absolutely nothing for sleep.
14 August 2026Best investment we made
Compared to what we were spending on other sleep solutions that weren't working, this was genuinely the best investment we made.
12 August 2026Finally, one that works
I've tried so many baby sleep products and most of them were disappointing. This is the first one that genuinely delivered on every promise.
11 August 2026Exactly as described
The product description was accurate in every single way. What they said it would do, it did. That kind of honesty from a brand is so refreshing.
9 August 2026Clear, realistic descriptions
The website made it easy to understand exactly what I was buying. The descriptions were clear and realistic, which I really appreciated.
8 August 2026True to the photos
I was a bit worried ordering online without seeing it in person first, but the photos were completely true to life. The quality was immediately obvious.
6 August 2026Lovely packaging
The packaging when it arrived was really lovely. It felt like a premium product from the very first moment I opened the box.
5 August 2026Felt special from the box
It came wrapped neatly and felt like something special. That attention to unboxing detail tells you a lot about how much care goes into the product itself.
4 August 2026Smooth from start to finish
The whole experience from ordering to delivery was so smooth. Great communication, fast shipping, and a product that exceeded my expectations.
2 August 2026Great customer service
Customer service responded to my size question within hours. Knowing there's a real, caring team behind the brand made me even more confident in my purchase.
1 August 2026Handy zip
The two-way zipper makes nappy changes at night a bit easier, which is handy. It's a practical little feature.
30 July 2026Quick, helpful replies
I emailed asking about care instructions and they replied so quickly and helpfully. It's clear they actually care about their customers.
29 July 2026A brand I trust
The brand just feels trustworthy. From the website to the product itself, everything communicates quality and genuine care for babies and their families.
27 July 2026Our paediatrician liked it
My paediatrician actually complimented the sleep sack when she saw it at our appointment. She said the weighted design was a smart, safe approach.
26 July 2026Our nurse approved
I mentioned it to our child health nurse and she was very positive about the design. Hearing that from a professional gave me even more confidence.
25 July 2026Half my mothers' group has one now
Several mums in my mothers' group have now bought one after seeing the difference it made for us. Word of mouth on this one spreads fast.
23 July 2026My best friend is hooked
My best friend bought one after I wouldn't stop talking about it. She texted me a week later saying it had changed her life.
22 July 2026Top of every registry
I've recommended it to every new mum I know. It's the one product I tell people to prioritise above almost everything else on the registry.
20 July 2026Playgroup favourite
At our playgroup, three other mums have started using it. We all agree it's the single best sleep product we've come across.
19 July 2026A more rested mum
The fact that the night wakings reduced so significantly made such a difference to my own mental health. I feel like a more rested, more patient mum now.
17 July 2026Better days start at night
Getting proper sleep has changed everything about how I parent during the day. This sleep sack genuinely made me a better mum and I mean that sincerely.
16 July 2026Gave us our sleep back
When you're sleep deprived, everything feels harder. This product gave us back our sleep and that's not a small thing — it changed everything.
15 July 2026Happy tears
I cried actual tears of gratitude after the third consecutive night of unbroken sleep. It sounds dramatic but that's genuinely how much this product meant to me.
13 July 2026I love bedtime now
I used to dread bedtime because of the long, exhausting settling process. Now it's one of my favourite parts of the day.
12 July 2026From stressful to peaceful
Bedtime has gone from my most stressful hour to the most peaceful part of our evening. I genuinely look forward to the little zip-up routine now.
10 July 2026Bath, feed, zip
We have a lovely little ritual now — bath, feed, zip up the sleep sack. She knows exactly what's coming and she embraces it so beautifully.
9 July 2026Predictable nights
The routine built around the sleep sack has been so grounding for both of us. Babies thrive on predictability and this has given us that.
7 July 2026She reaches for it
She reaches for it now when I hold it up before bed. Watching her recognise something that brings her comfort is one of the sweetest things.
6 July 2026You can see her relax
The way her whole body relaxes when I zip her in is the most reassuring thing to witness as a mum. You can just see the tension leave her.
5 July 2026She smiles at it
She smiles when I take it out of the drawer. I don't know if babies can actually feel excited about an object but I'm convinced she does.
3 July 2026Melts my heart
There's something so beautiful about seeing her completely at peace in it. She looks so snug and safe and it melts my heart every single night.
2 July 2026The weight stays even
It has held up so well in the wash. I was worried the weighting might shift or clump but it's stayed perfectly even after dozens of washes.
30 June 2026Holds its shape
The quilted front has maintained its shape and weight distribution perfectly. It's clearly constructed with real care and quality materials.
29 June 2026Just like day one
I've washed it weekly for months and it looks exactly the same as it did on day one. That kind of durability is rare in baby products.
27 June 2026Comfy and easy
She seems comfortable in it and doesn't fuss when I put it on her. It's become a normal part of our bedtime routine.
26 June 2026Softer every wash
The cotton feels even softer after washing, which I didn't think was possible. It just gets better with every wash and that really impressed me.
25 June 2026No scratchy seams
There are no rough seams or scratchy tags anywhere on it. Everything that touches her skin is smooth and gentle, which matters so much to me.
23 June 2026Gentle on sensitive skin
She has quite sensitive skin and she's never had any reaction to it at all. The fabric is clearly gentle and well-chosen for babies.
22 June 2026No reactions at all
I checked the fabric carefully before putting it on her because she's had reactions to some materials before. This one has been completely fine, even on her most delicate skin.
20 June 2026Arms free to self-soothe
The sleeveless design means her arms are free to self-soothe, which is something her sleep consultant actually recommended. This design is just right.
19 June 2026Helps her self-settle
Her sleep consultant told us to encourage self-settling, and having her arms free in this sleep sack supports exactly that. It's been part of her learning to settle herself.
17 June 2026Settling on her own
She's learned to self-settle so much more effectively since we introduced it. I think the weighted comfort gives her enough reassurance to do it on her own.
16 June 2026Designed with real care
I love that it supports her development rather than working against it. The roomy hips, free arms, and breathable fabric feel like they were designed with real developmental knowledge.
15 June 2026Room for healthy hips
The hip-healthy design was important to me because of family history. Knowing her joints have room to develop naturally is something I feel really grateful for.
13 June 2026Ticks every box
I've read so much about safe hip development in babies and this sleep sack checks every box. It's reassuring to feel informed and confident about what she's wearing.
12 June 2026Just the right temperature
It keeps her at a comfortable temperature without any fuss. I've never woken to find her sweaty or too cold, which tells me the fabric is doing its job perfectly.
10 June 2026No more temperature worries
Temperature regulation was my biggest worry with any sleep product. This fabric is so well balanced that I genuinely never worry about it anymore.
9 June 2026Starfish approved
She sleeps with her arms up in that gorgeous starfish position and the sleep sack accommodates it perfectly. It never constrains her natural sleeping posture.
7 June 2026Peace of mind on the monitor
I love watching her on the monitor, all tucked up and cozy in her little sleep sack. She looks so settled and content and I feel so at peace knowing she's safe.
6 June 2026Settled all night
The monitor view of her in the sleep sack gives me such peace of mind. She stays in position all night and I never see her struggling or uncomfortable.
5 June 2026No more kicked-off blankets
She used to wriggle out of blankets constantly and I'd wake up panicking. Now everything stays exactly where it should be all night long.
3 June 2026No more blanket checks
No more middle-of-the-night blanket checks. I go to sleep knowing she's covered and comfortable and I don't have to check again until morning.
2 June 2026My go-to shower gift
I've gifted it for three baby showers now and every single mum has thanked me effusively afterwards. It's become my go-to new baby gift.
31 May 2026The gift that works
It makes such a thoughtful and practical gift. New parents need things that actually work, and this one delivers in a way that feels almost miraculous.
30 May 2026I gift it with a note
When I give it as a gift I always include a little note explaining why I love it so much. It's the kind of product you want to evangelise about.
28 May 2026The best gift she got
My sister-in-law called it the best baby gift she received. Coming from a mum of three who has tried everything, that meant a lot.
27 May 2026A decent sleep sack
It's a decent sleep sack and I'd probably buy it again. It's done the job for us.
26 May 2026The one thing I'd keep
I've been a mum for eight months now and this is the one product I would keep if I could only keep one thing. It's that important to our daily life.
24 May 2026Our most important purchase
If someone asked me to name the single most important purchase I made for my baby, this would be it without hesitation.
23 May 2026Does what it says
I've spent so much money on baby gadgets and gimmicks. This is the one that actually does what it says and I wish I'd found it sooner.
21 May 2026Have one ready before baby
Finding out about this earlier would have saved us weeks of difficult nights. I always tell expecting mums to have one waiting before the baby even arrives.
20 May 2026Wish we'd had it from day one
I wish I'd known about it from day one. We spent the first two months struggling through nights that could have been so much easier.
18 May 2026Our little miracle
Looking back, the first couple of months were so much harder than they needed to be. This sleep sack arrived like a little miracle and I've never looked back.
17 May 2026Night after night
The improvement in her sleep has been consistent, not just a one-night fluke. Night after night, week after week, she sleeps better in this than anything else.
16 May 2026Still works months in
It hasn't lost its effectiveness over time, which I was worried about. Months in, it still works just as well as the very first night.
14 May 2026Works every single time
Some sleep solutions work for a week and then stop. This has maintained its positive effect the entire time we've used it and that consistency is everything.
13 May 2026I trust it every night
I feel like I can trust this product every single night. That reliability is what sets it apart from everything else we've tried.
11 May 2026Reliable bedtimes
Knowing what to expect at bedtime has reduced my anxiety enormously. A reliable sleep sack means a reliable bedtime and that's worth everything.
10 May 2026Evenings feel calm now
The predictability it's given our nights has been so calming for my own nervous system. I used to dread evenings; now I feel completely at ease.
8 May 2026The missing piece
I feel so much more confident as a mum since we found a sleep routine that works. This sleep sack was the piece that made the whole puzzle come together.
7 May 2026Something that truly helps
There's so much pressure on new mums to have everything figured out. Finding this product made me feel like I'd finally found something that genuinely helped.
6 May 2026Simple and it works
It's nice to have something that works so simply. No complicated steps, no special technique — just zip it up and let it do its thing.
4 May 2026Just zip it up
The simplicity of it is part of what I love. There are no settings to adjust or steps to follow — it just works naturally every time.
3 May 2026Calm on the hard days
Even on the hard days when everything else has gone sideways, bedtime with this sleep sack gives me a reliable moment of calm. It never lets me down.
1 May 2026Works when she's overtired
On the nights when she's been overtired or fussy, the sleep sack has still worked its magic. Even on the hard nights it brings her comfort quickly.
30 April 2026Expected more
I was really hoping this would improve my son's sleep but honestly we haven't noticed much difference. For the price I expected a lot more.
28 April 2026Helps on rough nights
There have been a couple of nights where she was really unsettled, and even then the weighted sack helped her calm down faster than anything else could.
27 April 2026Through leaps and teething
It works equally well when she's going through developmental leaps or teething. The comfort it provides seems to transcend whatever else is going on for her.
26 April 2026Grows with her
I appreciate that it's designed for a broad age range because babies change so fast. This has stayed relevant through every stage and development in her first months.
24 April 2026Remarkable value
The value you get from birth to nine months is genuinely remarkable. Most baby items have such a short window of usefulness, but this one grows with her.
23 April 2026Everything I look for
I feel so good about this purchase from every angle — the quality, the safety, the results, and the value. It's everything I look for in a baby product.
21 April 2026A permanent place in our home
As a mum, when you find something that genuinely works you hold onto it tightly. This sleep sack has earned a permanent place in our home and our hearts.
20 April 2026My number one recommendation
I tell my mum friends to trust their instincts about what their baby needs, and I also tell them to try this sleep sack. It's one recommendation I make with complete confidence.
18 April 2026The answer I was searching for
Finding the Marlo Lane sleep sack felt like finally finding the answer I'd been searching for. I am so grateful it exists and so grateful we found it when we did.
17 April 2026No reviews with that rating yet.