7 Best Toddler Sleep Sacks, Tested by a Mom and Child

At the top of our roundup is ErgoBaby’s On the Move Sleep Bag, which checks all of the boxes on our list. This sleep sack with legs offers a generous fit and age range (the small runs from 6 to 18 months, for example), giving kids plenty of room to grow. There are snaps at the shoulders that can be adjusted, along with a full zip down the front to make diaper and pull-up changes a breeze. Plus, there’s even a seat belt slot, making this a perfect option for late-night road trips.

The toddler sleep sack comes in numerous patterns and was a big hit with my one-year-old, who regularly wore it to play in before settling down for naps and bedtime. Parents will appreciate that it’s simple to wash; you can just toss it in with the rest of your laundry. It didn't shrink or pill, and there were no snags, despite being washed with Velcro-heavy ice hockey equipment.

Moreover, the fabric of this sleep sack is soft and comfortable, with an all-purpose mid-weight TOG rating. The edges have piping around them for reinforcement, and the zipper is strong. Overall, these details work together to create a high-quality, durable design that you can count on for many snoozes to come. Just be aware that the large size range means it may be big on your child for a while. But with plenty of room to grow, you can get a lot of use out of this sleep sack before needing to size up.

Sizes: 6-18 months to 18-36 months | Material: 100% cotton | Care instructions: Machine wash

Dealing with last-minute diaper and pull-up changes can be a drag when your toddler is already in their sleep sack for the night, but the Copper Pearl Sleep Bag makes these moments easy. The traditional-style sleep sack has a zipper that runs all the way down the front, side and bottom of the sack, so it’s simple to get your child in and out. While testing, I appreciated how easy it was for late-night diapering and potty breaks. The sleep sack is large—there was extra fabric at the bottom when my one-year-old stood up with it—but there’s plenty of room to grow.

If that’s not all, this toddler wearable blanket comes in 149 color and pattern options, so you’ll be able to find a match for even the pickiest of tots. The construction is high-quality, with nearly invisible zippers, strong seams and thick piping. The knit fabric is soft, with a slight plushness for extra warmth. While it’s a good fit for cooler nights, it wasn’t so heavy that my child got sweaty during use.

This sleep sack is designed to be washed in cold water and tumble dried on low, which is slightly different from how many people do their laundry. Still, the fabric held up well over repeated washings during testing and even seemed to get softer over time. As a whole, the sleep sack has the feel of a well-loved blanket, with a weight that many toddlers will appreciate.
Sizes: 0-6 months to 18-24 months | Material: Polyester/rayon | Care instructions: Machine wash cold, tumble dry low

While most sleep sacks for toddlers are soft, the Tealbee Dreamsuit takes the cake in this category. It has the cozy feel of a well-loved, old T-shirt—plus, it’s stylish, with a sleek look and even a little pocket for added flair. The pattern is crisp and well-defined, with high-quality printing. What’s more, it fit my one-year-old well and left plenty of room in the legs and gusset for her to grow into, without feeling like she would trip over it.

The Tealbee Dreamsuit features a zipper that runs the full length of the body and is easy to glide up and down. The weight is warm enough for cold weather without being too hot, and the stitching and seams are sturdy. Keep in mind that it’s a little too cozy for summer—you’ll want to find a lighter option for warmer months. This sleep sack is designed to be washed on gentle and tumble dried low, but like other heavier-weight sleep sacks we tested, it needed more time in the dryer after the first round. As a whole, the Dreamsuit offers plenty of warmth—and softness—for kids in an aesthetically pleasing package.

Sizes: 12 months-2T to 3T-4T | Material: 70% bamboo rayon/30% cotton | Care instructions: Machine wash

If the temperature in your home runs on the chilly side or your little one just likes to be extra cozy, opt for a heftier sleep sack, just like this option from Baby DeeDee. The Sleep Nest Original has polyester filling to mimic the feel of a small comforter, keeping kids nice and warm in the process. Plus, it features an additional quilted layer, earning it a TOG rating of 2.5—the highest on our list.

Even though this toddler wearable blanket is thicker, it’s still simple to use. A zipper runs down the entire length, making it easy to slip your child inside, even if they're already sleeping—something we discovered when my one-year-old conked out early one night. Snaps at the shoulders also made this process quick, without disturbing my toddler’s rest.

Baby DeeDee uses simple colors for a versatile look, and you can choose from nine colorways. This toddler sleep sack is designed to be washed cold, inside out, and tumble-dried low. Like other filled styles, this was still damp at the bottom during testing after one drying cycle. However, it was good to go after another round, and the fabric only became softer with repeated washings. This is a warm toddler sleep sack that’s sure to become a go-to in your household on cooler evenings.

Sizes: S (0-6 months) to L (18-36 months) | Material: 100% cotton (shell)/100% polyester (filling) | Care instructions: Machine wash cold and inside out, tumble dry low

If you’re planning to have more children or have a tot who’s rough on their gear, you may need a toddler sleep sack that’s extra durable. That’s where the Burt's Bees Baby Wearable Baby Blanket will come in handy. It’s made from 100 percent organic cotton with a sturdy construction to hold up to plenty of use, now and in the future. The design has strong, secure stitches with well-done edges for a high-quality feel. Coordinating piping around the edges also creates a stylish look.

This toddler sleep sack is simple to use—just zip it up and you’ll be good to go. The zipper runs the full length, so it’s straightforward to take on and off. The wearable blanket fits well but does offer extra room at the bottom which allowed my one-year-old to move around her crib. It can be washed with your other clothes, but the company recommends turning it inside out first. Like most sleep sacks for toddlers, it needs to be tumble-dried on low—and it may need two cycles to get fully dry. The fabric held up great over repeated washings during our testing and looked brand new every time.

Burt’s Bees sleep sack comes in 0.5 and 1.5 TOG rating options. While the latter could be used year-round, it will likely feel too toasty in the summer if you don’t have air conditioning. The final verdict: This durable option is sturdy and seems like it could easily be passed down to other kids in the future.

Sizes: 3-9 months to 24-36 months | Material: 95% bamboo viscose/5% spandex | Care instructions: Machine wash cold, tumble dry low or line dry

Toddler sleep sacks aren’t known for being fashionable choices, but the DockATot Sleep Romper challenges that opinion. This wearable blanket has a fitted design that makes this look like a “regular” romper. It’s an excellent choice for naptime, giving your toddler the flexibility to have an outfit they can move freely in before and after conking out. A side zipper and snaps at the shoulders made it easy to slide my one-year-old in and out as needed.

Because this toddler sleep sack with feet looks more like daytime clothing, the cotton poplin exterior fabric is a little stiffer than those of other sleep sacks. But the interior has a plush, slightly fuzzy feel that you would want against your child's skin. My one-year-old had no complaints about wearing this for play and sleep. The fabric and stitching are high-quality, and they definitely seem like they’d hold up over time.

DockATot recommends that this sleep sack be washed on cold and tumble-dried low, and it handled both with no issue during testing. The fabric also got softer the more it was washed. While this isn’t the cheapest sleep sack you can find, you’ll be able to get more mileage out of it—and avoid the fight to get your child dressed on cranky days—by using it as daywear, too.

Sizes: 18-36 months | Material: 100% cotton | Care instructions: Machine wash cold, tumble dry low

Toddler sleep sacks aren’t just for colder months. Case in point: The gunamuna Sleep Bag Walker. This toddler wearable blanket feels high-quality and has a soft, worn-in texture that’s incredibly comfortable to the touch, making it a great option for year-round use. It’s warm, but not so toasty that kids will overheat at night—and my one-year-old had no issues with night sweats while wearing this.

This option is slightly puffy so kids can feel cozy without looking like a marshmallow. It fits well up top and is baggier at the bottom to create a comforter-like silhouette that still allows for mobility. My one-year-old appreciated that it has feet, with large cuffs to create plenty of space for her to run around before bed. And, as a parent, I appreciated that it was easy to put on and take off, thanks to a zipper that runs up the length of it.

The seams are well-constructed and the zipper has a guard at the neck to prevent accidental pinches. There’s also a "potty-ready" zipper at the bottom for late-night bathroom breaks. Just note: You’ll need to hold the fabric up while your child goes to the bathroom or take their legs out of the bottom part to avoid getting it wet. While this sleep sack can be tossed in the wash, it takes up to a day to fully dry via air drying, which the company recommends. The bottom line? This toddler sleep sack with feet is a nice middle-of-the-road option. It's not too hot or too light, and it's very comfortable.

Sizes: 3-9 months to 24-36 months | Material: 95% bamboo viscose/5% spandex | Care instructions: Machine wash cold, tumble or line dry