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100% Cotton
Imported
Adjustable Warmth Without Overheating: Detachable sleeves allow you to easily add or reduce warmth as room temperatures change — helping prevent overheating while keeping your baby comfortably warm through the night. Made to support safe sleep by promoting better temperature regulation without loose blankets.
Sleeves On or Off — No Guessing: Keep arms covered when it’s cool and remove sleeves when it’s warm. This flexible design helps parents adjust comfort without guessing or waking baby. No need to buy multiple sleep sacks for different seasons — one solution that adapts as conditions change.
Easy Nighttime Diaper Changes with 2-Way Zipper: A smooth 2-way zipper allows quick diaper changes without fully undressing your baby. The zipper guard helps protect delicate skin and keeps nighttime changes quiet and gentle — ideal for middle-of-the-night care.
Monitor Baby’s Temperature: The built-in chest temperature strip lets parents quickly check baby’s skin-contact temperature at a glance and adjust layers as needed — without disturbing sleep. A helpful visual guide for caregivers, especially during nighttime or seasonal transitions.
Breathable Safe & Easy Care: Made from soft, breathable cotton fabric designed for sensitive newborn skin. A safer alternative to loose blankets for peaceful sleep. Machine washable for easy everyday care — simply wash on a gentle cycle and tumble dry low.
8 reviews for Baby Sleep Sack 6–12 Months, Cotton Sleep Sack with Detachable Long Sleeves, 1.0 TOG Wearable Blanket for Cooler Nights, 2-Way Zipper Toddler Sleeping Sack with Temperature Strip, Hot Air Balloon
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$39.99

Iryna –
Super soft, warm and safe solution for your baby’s sleep.
I wish I had bought it sooner! The fabric is soft, smooth, and cozy. The fit is great. It’s warm but not too thick. The fact that you can detach the sleeves makes it safer to use on warmer nights. Besides, I’m in love with the beautiful pattern. I definitely recommend it, and I will buy it again!
Era Hajdari –
“Perfect for Peaceful Sleep – A First-Time Parent’s Must-Have”
“As a first-time parent, sleep and comfort matter a lot to me.This sleep sack feels incredibly soft and gentle on my baby’s skin.I love how easy the zipper makes nighttime diaper changes.My baby stays warm, comfortable, and sleeps better without overheating.It gives me peace of mind every night.”
Tayler –
High quality, low price
Surprised by the quality since it was so inexpensive for a sleep sack. Super soft, warm, and functional, and the pattern is so cute! Better than my more expensive sleep sacks!
pretty1245 –
Sleep Sac
I bought this for my grandson, I was surprised how heavy it is, in a good way. the material is great. it’s very soft. my son says it keeps the baby warm at night. it is worth the money for sure.
Amazon Customer –
warmth
I love this product! The fabric is soft, the design is really cute, and more than anything, it’s really warm! My son is around 50th percentile and almost 11 months old. I got him the 6-12 month size as I remember the sleep sacks generally running big from when my daughter was a baby. I was correct. It fits him well now and it should fit him for the remaining months of winter. I know it’s silly, but the sleep sack also arrived in a cute box that I’m saving.
Kara Zielicke –
Decent!
Technically they sent me the wrong size I ordered 3-6m and I got a 6-12m.Very thick and keeps my baby warm at night, but it is a tad bulky and can be hard to nurse, the sleeves are to “stiff” and my baby has a hard time self soothing because he cant bend his arms. We removed half the sleeve and he is better able to reach the sleeves were a little tough to put his arms in. But it does work well and i needed it thicker so this is a good one overall.
Igor Martyshchenko –
The best baby sleep
Love this so much ! So nice and cozy. I like the way that you can unzip sleeve when it’s more hitter days. very nice cotton. the only thing I ordered bunny color but got ocean one but I am in Florida so this works and print is nice. also did couple machine washes and quality stays the same. Also it arrived in the nice gift box , so it could be a great gift if you are looking for a present.
Caroline Allen –
Perfect
Soft, perfect weight, cozy, easy zipper and my 1 year old loves it – I am concerned he will grow out of it so maybe its smaller, hes in an 18 month and hes only in the 30 percentile for height. Other than a small length, everything was perfect and he wears a full fleece onsie underneath (gets chilly at night)