Babies need safe sleep and the best way is with a wearable blanket, called a sleep sack, or your new best friend. With baby warm and comfy, both mom and baby can get a few extra hours of Z’s. With so many sleep sack choices, which is best for your baby? Don’t worry, we have the scoop on infant sleep sacks and sleep sacks for toddlers to save you hours of research with all the best options for your needs right here. We did the work to help you and your little one get a good night’s rest.
Best Sleep Sacks
Halo is a well known name for sleep sacks. The HALO Sleepsack is a cotton, sleeveless, wearable blanket that keeps their legs tucked in with a zipper for easy diaper changing, whereas the HALO Big Kids Sleepsack is a polyester, sleeveless, sleep sack that has legs for walking toddlers but still has an inverted zipper for diaper changes.
Love to Dream Swaddle Up Sleep Sack
The Love to Dream Swaddle Up sleep sack will provide the perfect conditions for your little love to sleep through the night. Designed for a baby’s natural sleep positions, both mom and baby will get a full night’s rest. The TOG rating is 1.0 and is for babies weighing between 5 pounds and 18.5 pounds.
What I Love
- Tapered fit at the waist gives your little a swaddled feel without adding bulk
- Shape of the arms allows baby to hold their arms up in a preferred position
- Two-way zipper makes changing baby’s diaper a breeze
- Wide foot space
- Five colors and multiple sizes
- Unique shape helps reduce startle reflex for some babies
- More expensive than Halo but not scary
What I Do Not Love
- Neck area can be a bit tight
- Fabric is thinner than expected and probably better suited for summer or warmer nights
Alternative: The Love to Dream Nuzzlin Sleep Sack is a great alternative for those mama’s wanting a more traditional shape.
Halo Sleep Sack
Halo Sleep Sack is the first name to come to mind when you think of a wearable blanket because they have been making them longer and better than other companies. Today, Halo still offers quality sleep sacks to keep baby snoozing through the night. The TOG rating is 1.0 and it is best for babies who weigh 5 pounds to 36 pounds.
What I Love
- Zipper unzips from the bottom
- Sizes range from preemie to extra-large
- No sleeves prevent overheating
- Embroidered right on the front is the phrase “Back is Best” to show Halo’s commitment to helping prevent SIDS
- Roomy to give baby room to move their chunky thighs but still small enough to keep them cozy
- Great price
What I Do Not Love
- Zipper can break or be uncooperative
- Size runs large
Alternative: Halo also has a Swaddle Sleep Sack for babies who need tighter spaces to feel comfortable.
Disney Dumbo Wearable Blanket
The Disney Dumbo Wearable Blanket brings adorable to a new level, at least for Disney fans. Pick from Minnie Mouse, Dumbo, or Simba themed wearable blankets to keep your adorable bundle bundled adorably! The price is nice too, the perfect pick for your baby or a gift. It is designed for babies weighing between 7 pounds and 22 pounds.
What I Love
- Disney design!
- Affordable price
What I Do Not Love
- Zipper isn’t the best
- Legroom is shorter than some other baby sacks
Halo Early Walker SleepSack
Halo created a sleep sack for every need including for Early Walkers. Keep your toddler warm and cozy but still able to get out of bed safely. With multiple sizes and colors keeping baby comfy has never been easier. The TOG rating is 1.0 and it is best for babies weighing 5 pounds to 36 pounds.
What I Love
- Feet can be tucked in the bag or out for walking
- Sizes medium to extra-large
- No sleeves prevent overheating
- Embroidered on the front is “Back is Best” to show Halo’s commitment to helping prevent SIDS
- Price is almost too good to be true
What I Do Not Love
- Runs large
- Zipper may break or become uncooperative
TILLYOU Breathable Cotton Baby Wearable Blanket
The TILLYOU Breathable Cotton Baby Wearable Blanket features a convenient and practical 2-way zipper design. This design allows you to zip down from the top or zip up from the bottom which is super handy. This has a TOG of 0.5 and it comes in sizes small to extra-large.
What I Love
- 2-way zipper design
- Sleeveless so baby doesn’t get too hot and can move around freely
- 100% Natural Premium Cotton
- Features zipper protectors
- Each purchase includes 2 sleep sacks
What I Do Not Love
- Only 4 designs to choose from
Best Organic Sleep Sacks
The Burt’s Bees Baby Wearable Blanket and the Touched by Nature Baby Sleep Sack are very similar, however, the Touched by Nature Sack is a lighter weight option which is better for warm, summer nights.
Burt’s Bees Baby Wearable Blanket Sack
For an organic baby sleep sack choice, the Burt’s Bees Baby Wearable Blanket Sack[ /easyazon_link] is your best bet. The Burt’s Bees sack is available in sizes small, medium, and large and you can choose from over 10 designs.
What I Love
- 100% Organic Cotton
- Climate Pledge Friendly
- Zipper opens from the bottom for easy diaper changes
- Super soft
- Great for sensitive skin
What I Do Not Love
- Zipper could have a flaw
Touched by Nature Organic Baby Sleep Sack
[products asin="B00X24LZ50"]Another great 100% organic cotton option is the [easyazon_link identifier="B00X24LZ50" locale="US" tag="experiencedmommy-20"]Touched by Nature Organic Baby Sleep Sack. It is lightweight so it’s great for the summer months or warmer nights. You can choose from a huge list of designs, it’s awesome! The TOG is 0.5 and sizes range from 0 months to 24 months.
What I Love
- Lightweight material (for warm nights)
- 100% Organic Cotton
- HUGE list of designs
What I Do Not Love
- Price depends on size and design
Best Sleep Sack for Summer
aden + anais Classic Sleep Sack
This thin cotton sleep sack is a perfect choice for summer, or for babies who run hot. The aden by aden + anais Classic Sleep Sack comes in 3 sizes and a bunch of colors, so you can get it in lots of cute styles for any age. The thin cotton muslin allows for maximum breathability while still keeping baby cozy. This infant sleep sack has a TOG of 1.0 and is for babies weighing between 10 pounds and 28 pounds.
What I Love
- 100% cotton muslin
- Sizes range across the first 18 months of baby’s life
- No sleeves so the sack stays light and breezy and gives baby free range of motion
- Double-layered to keep baby warm enough
- Zips from the bottom up
What I Do Not Love
- Improper zipper alignment
- Potential faulty zipper
Alternative: Because Halo has a sleep sack for every occasion, they also make a thinner, muslin sleep sack. It comes in lots of colors and patterns and has slightly better quality. The thing to note here is that the Halo 100% Cotton Muslin Sleep Sack is only 0.5 TOG, so it’s even thinner than the Aden + Anais summer sleep sack.
Best Sleep Sack for Winter
Hudson Baby Long-Sleeve Wearable Sack
The Hudson Baby Long-Sleeve Wearable Sack was designed for colder weather and nights. The long sleeves feature built-in scratch mittens for protection and they help to keep your tiny tot’s hands warm. You can choose between sizes 0-3 months or 3-9 months.
What I Love
- Long-sleeved design
- Features built-in scratch mittens
- Good price
- Features zipper protector
- Lots of designs to choose from
What I Do Not Love
- Sizes only accommodate up to 9 months
Alternative: For a baby sleep sack with removable sleeves, try the OuYun Baby Organic Sleep Sack.
RELATED: The Best Infant Car Seats
Best Sleep Sack with Zipper on Side
Woolino Season Ultimate Baby Sleep Sack
The Woolino Season Ultimate Baby Sleep Sack comes with a hefty price but offers a ton of features. The only reason this one is farther down the list is the exorbitant price but if you have the money, this is the sleep sack for your baby! It might be time to ask grandma for a little help! It is best for children ages 2 months to 2 years.
What I Love
- Features a seatbelt slot
- Tagless
- Shoulder snaps help get baby into sleep sack
- Multiple sizes and colors to choose from
- Long shape for plenty of room
- Helps regulate baby’s temperature
What I Do Not Love
- Higher price but features are worth it
Alternative: Woolino also makes a Cotton Organic Sleep Sack for naturally-conscious mamas.
Comparing the Best Sleep Sacks
The table below compares only the recommended products on this page. A low or high Price means it is low or high compared to the other products listed. The Popularity Score reflects how often readers click on and buy the product. The Quality Score is our assessment of the overall performance and satisfaction with the product compared to others in the table.
| Woolino Season Ultimate Baby Sleep Sack | 6.1 | 9.4 | 109.00 |
| Love to Dream Swaddle Up Sleep Sack | 9.9 | - | 32.95 |
| Halo Sleep Sack | 9.9 | 9.6 | 29.99 |
| TILLYOU Breathable Cotton Baby Wearable Blanket | 9.2 | 9.0 | 29.99 |
| aden + anais Classic Sleep Sack | 4.6 | 7.2 | 27.90 |
| Burt's Bees Baby Wearable Blanket Sack | 9.9 | 9.6 | 26.95 |
| Hudson Baby Long-Sleeve Wearable Sack | 9.8 | 8.8 | 22.99 |
| Disney Dumbo Wearable Blanket | 6.4 | 9.6 | 15.94 |
| Touched by Nature Organic Baby Sleep Sack | 8.7 | 8.8 | 13.60 |
| Halo Early Walker SleepSack | 3.9 | 9.4 | - |
Guide to Selecting a Baby Sleep Sack
Baby sleepsacks were invented to prevent babies from having loose blankets that could be a hazard. Here are a few key aspects to keep in mind:
Foot Room
Some babies love lots of legroom while others prefer confined spaces. Pick a blanket that best suits your baby’s needs.
Ease of Diaper Change
Diaper changes are inevitable. Pick a wearable blanket that makes this chore easier on both mom and baby. Also, opt for a great night time diaper so that you have to do those middle-of-the-night changes less frequently.
Comfortable Fabric
Most baby fabrics are soft and comfy but always check for breathability and softness as baby’s best night of sleep will not happen if they are covered in scratchy fabric.
Zipper
Most zippers nowadays are cheap and unreliable… find one that seems sturdy if possible. Also, keep in mind if the zipper is near the baby’s delicate chin. A cover for the zipper is better.
Neck Hole
The neck hole needs to be large enough to allow breathing room but not so large it slumps or falls off baby’s neck and onto their shoulders.
TOG Rating
TOG stands for ‘Thermal Overall Grade’ and refers to the unit of measurement for textiles and warmth. Choose the TOG rating that best suits your house temperature and how warm or cold your baby tends to be.
FAQs – Sleep Sacks for Babies
Are baby sleep sacks safe for tummy sleepers?
Tummy sleeping isn’t safe for any baby until they can roll over on their own. Always put the baby to rest on their back and if they roll over they should be fine.
What should I put on my baby under the sleep sack?
Depending on the weather, put them in a onesie or a bodysuit. Try to avoid fleece or heavy fabrics when putting them in the blanket as you do not want the baby to overheat.
Should I get a thick or thin baby sleep sack?
Pick a sack thickness based on your house temperature (don’t forget the nursery heater!), local temperature, your baby’s natural temperature, and preferences. Try a couple of different thicknesses until you find the one that works for your baby.
Is it okay to use a bigger size baby sleep sack, or do I need to buy one size per age?
Try to get a size that fits your baby’s neck and shoulders well so it doesn’t scrunch or cause issues such as bunching near the baby’s face or mouth. Then look at length to make sure they have enough room to move and kick without a lot of extra bottom fabric (which will become a baby toy, I promise you…they will find it and play with it!).
Can I use a blanket instead of a baby sleep sack?
Blankets are not safe for babies when unattended as they do not move well enough if a blanket gets too close to their mouths. Sleep sacks are a safe alternative to a blanket.
Can I wash the baby sleep sack?
Yes. Always wash the sleep sack before putting baby in it for the night. Feel free to try it on baby before washing so you can still return the sack if you need to but will know if it fits properly.
Our Favorite
The Love to Dream Swaddle Up Sleep Sack is the perfect combination of fit and comfort for most babies. They have cornered the market with a safe, comfortable, and affordable baby sleep sack to help you and your baby sleep through the night.
