usbettas

Baby Sleep Sack 6 12 Months Cotton Sleep Sack with Detachable Long Sleeves 1 0 TOG Wearable Blanket

834+ bought in the past month

$39.99

About this item

  • 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.
$39.99

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DeliveryFriday 10 Apr – 16 Apr
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Customer reviews

4.6137 ratings

Customers say

Customers find the sleep sack warm, with one mentioning it's perfect for cold winter nights, and they appreciate its softness, comfort, and cute design.

★★★★★

“Perfect for Peaceful Sleep – A First-Time Parent’s Must-Have”

Era HajdariFebruary 8, 2026✓ Verified purchase

“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.” Read more

★★★★★

High quality, low price

TaylerJanuary 10, 2026✓ Verified purchase

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! Read more

★★★★★

warmth

CustomerDecember 29, 2025✓ Verified purchase

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. Read more

★★★★★

Sleep Sac

pretty1245February 12, 2026✓ Verified purchase

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. Read more

★★★★★

The best baby sleep

Igor MartyshchenkoJanuary 12, 2026✓ Verified purchase

The media could not be loaded. 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. Read more

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★★★★☆

Decent!

Kara ZielickeJanuary 13, 2026✓ Verified purchase

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. Read more

★★★★★

Perfect

Caroline AllenFebruary 26, 2026✓ Verified purchase

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) Read more

★★★★★

Perfect for little growers

Angelique M DouganJanuary 10, 2026✓ Verified purchase

My baby boy is 4 months old and he absolutely loves this little sleep bag! Has plenty of room for him to grow and sleep comfortably. It’s been really hard to find the perfect one for him to keep him comfortable and warm without being too thick and heavy. So far it’s been perfect for us and it’s so durable that if he does throw up on it a little bit overnight it can go right in the laundry the next morning so it’s ready to go at bedtime. Read more

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