108 products
Comparison Table
Compare each collection to confidently choose the best match for your needs. From thoughtfully selected materials and all-day comfort to smart, practical details, every piece is made with real life in mind. Built for daily routines, these designs balance durability and ease of use.
Baby Sleep Sack
Keep your little one safe, comfortable, and snug all night with our ultra-soft baby sleep sacks in breathable rayon from bamboo.
Swaddle Bag
Breathable, ultra-soft swaddle bags designed to keep babies comfortable and help parents enjoy easy, stress-free bedtime routines.
Sleep Bag Walker
Ultra-soft bamboo sleep bags designed for warmth, freedom of movement, and secure comfort, perfect for bedtime, naps, or travel.
Key Features
How to Choose the Best Sleep Sack for Your Baby
A sleep sack, also called a sleep bag or wearable blanket, zips on over your baby's pajamas and keeps them covered all night without loose bedding in the crib. The best sleep sack for your baby comes down to three things: size, TOG rating, and fit.
Sizes run by weight and height rather than age, from newborn through toddler. Our sizing chart gives the exact range for each size and shows when it is time to move up.
For fit, the neck opening should be snug enough that your baby's head cannot pass through, with armholes close but not restrictive, and enough room at the hips and legs to bend freely. Every Kyte Baby sleep sack has a dual zipper that opens from either end for overnight diaper changes, and a zipper garage that keeps the pull away from your baby's chin.
How to Choose the Right TOG for Your Baby's Sleep Sack
TOG measures how much warmth a sleep sack provides. The right one depends on your nursery temperature rather than the season, so a room that stays warm year-round may need the same TOG in January as in July.
Kyte Baby makes three:
- 0.5 TOG for warm rooms, over a short sleeve bodysuit or just a diaper
- 1.0 TOG for average room temperatures, our most popular year-round option
- 2.5 TOG our warmest, for cooler nurseries and winter nights
Check your nursery temperature, then dress your baby underneath to match. Damp hair, flushed cheeks or sweating at the back of the neck mean your baby is too warm, and the fix is usually a lighter layer rather than a different TOG. For the full breakdown by room temperature, see our guide on choosing the right TOG.
Why Choose Kyte Baby Sleep Sacks?
- Safer than loose blankets. A sleep sack keeps your baby covered all night with no loose bedding in the crib, and it cannot be kicked off.
- Ultra-soft premium fabric. 97% rayon from bamboo, breathable and soft against delicate skin, and a favorite among families shopping for little ones with sensitive or eczema-prone skin.
- Three TOG ratings. Choose the warmth level that suits your nursery, from 0.5 TOG for warm rooms to 2.5 TOG for cooler nights.
- Built for night wakings. A dual zipper opens from either end for quick diaper changes, with a zipper garage that keeps the pull away from your baby's chin.
- Roomy, hip-friendly fit. Snug at the neck and armholes, with space at the hips and legs to move naturally.
- Made to last. Keeps its softness, stretch and color wash after wash, in prints and colors that suit any nursery.
- A fit for every stage. From the sleep bag swaddler for newborns, to the sleeveless sleep sack most families use longest, to the sleep bag walker for toddlers who want to stand and walk.
Frequently Asked Questions
Have questions? We've gathered the most common ones in this section to help you quickly find the answers you need.
Are baby sleep sacks safe for newborns?
Yes, once your baby meets the minimum weight and size guidelines for the size you choose. Always place your baby on their back to sleep. More in our guide to infant sleep sack safety.
Are sleep sacks really necessary?
Not required, but they are the simplest way to keep your baby covered with no loose bedding in the crib. A sleep sack cannot be kicked off, so you are not going back in to re-cover them. See how to choose a sleep sack.
How can I keep my baby warm without a blanket?
A sleep sack is a wearable blanket, so your baby stays covered with nothing loose in the crib. Match the TOG to your room temperature and layer underneath. Our guide covers how to dress your baby for sleep.
What TOG sleep sack should my baby wear at night?
Match the TOG to your nursery temperature: 0.5 TOG for warm rooms, 1.0 TOG for average, 2.5 TOG for cooler nights. Full chart in our guide to choosing the right TOG.
What should my baby wear underneath a sleep sack?
A short sleeve or long sleeve bodysuit, depending on room temperature and TOG rating. Our guide to dressing your baby for sleep breaks it down by temperature.
What size sleep sack does my baby need?
Sizes run newborn to toddler, based on weight and height rather than age. Check our sizing chart, or read the full sleep bag size guide.
Which sleep sack is best for a newborn?
For the first weeks most newborns suit a swaddle bag or sleep bag swaddler, moving to a sleeveless sleep sack at the first signs of rolling. More in our guide to the best sleep bags for newborns.
What are the different types of baby sleep sacks?
Five styles cover every stage: the swaddle bag and sleep bag swaddler for newborns, the sleeveless sleep sack most families use longest, the sleep bag walker with separate legs for toddlers, and the slumber bag with long sleeves for cooler nights.
How long can my child use a sleep sack?
From the early months through the move to a big-kid bed. Our guide covers when to start and when to stop.
When should my baby switch from a swaddle to a sleep sack?
At the first signs of rolling, usually between two and four months. A swaddle holds the arms in; a sleep sack leaves them free. Our guide covers when to stop swaddling.