The Best Baby Sleeping Bags

When it comes to sleep, keeping babies both safe and warm can feel a little overwhelming. But if you want to keep things simple, go with a baby sleeping bag. Basically a sack, a baby sleeping bag is little more than a zippered pouch for your little one to sleep in. However, it works wonders in keeping them cozy, comfortable, and free of any unnecessary sleep risks. Here are a few of our favorites.

Hudson Baby Sleeveless Sleeping Bag

The sleeveless wonder

This sweet little sleep sack is breathable and cozy, perfect for keeping your baby safe and warm.
Best Overall

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Made of soft cotton, this zippered sleeveless sack offers a lightweight blanket for your baby. Roomy and breathable, this is a great option for layering on cooler days and nights. Yet, it can be worn with just a diaper on warmer nights. Thoughtfully designed with growth in mind, the oversized fit is long enough to accommodate a baby for up to six months in age difference per size. Adorable prints, durable material, and a secure zipper round out the reasons why we keep this sack on heavy rotation year-round.

Pros:

  • Made of soft jersey knit cotton
  • Zipper cover for comfort and safety
  • Sizing in six-month increments

Cons:

  • These sacks will shrink with the first wash
  • For the softest feel, wash and dry a few times before first use

Hudson Baby Long-Sleeve Wearable Sleeping Bag

Cool-weather approved

With long sleeves and a fold-over mitten, this sleep sack keeps babies toasty on cooler nights.
Best For Cold Weather

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Becoming softer with each wash, this long-sleeve option is a definite go-to for cooler nights. Made of soft, stretchy cotton, your little one will be warm and cozy with long sleeves and an enclosed sack bottom. Featuring a snugger fit than the typical sleeveless option, this pick minimizes twisting and pulling, ensuring a perfectly safe sleeping sack for your little bundle. With scratch mittens that pull over their hands, their face will remain protected while their hands stay toasty warm, too.

Pros:

  • Lightweight long sleeve for breathability and warmth
  • Multiple colors and pattern options available
  • Protected zipper area to keep your baby’s face scratch-free

Cons:

  • Only available in size options up to nine months
  • The arms are snug enough to not allow for extra layers

Molis & Co. Baby Sleeping Bag

Lightweight and airy

This breezy cotton sleep sack is ideal for warmer weather.
Best For Warm Weather

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Although sleep sacks are meant as a way to keep your baby warm without the risk, there is the issue of overheating – especially on those warmer nights. Made of highly breathable cotton that’s airy and light, this sleeveless option is the premier choice for those in warmer climates. Fitted with zipper protectors, there’s even the added benefit of a two-way zipper, meaning far less hassle for those middle-of-the-night diaper changes.

Pros:

  • Single-layer, airy cotton for warmer sleeping conditions
  • Sized for fitting a six month age range per sack
  • Sustainable, plastic-free packaging

Cons:

  • The top portion of the zipper doesn’t always stay fully zipped
  • These have plenty of room – for wiggle-worms, it can be a bit too roomy

Woolino 4-Season Merino Wool Sleeping Bag

Premium wool and ultra cozy

Crank up the cozy factor with this splurge-worthy merino wool sleeping bag.
Most Splurge-Worthy

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These premium sleeping bags may be a bit pricey but they’re worth the splurge. Made of a luxurious blend of GOTS-certified organic cotton on the outer layer and an impossibly soft Australian merino wool liner, this adorable sleeping bag ensures your little one stays cozy and content. Designed for a universal fit for the toddler years, this is a definite favorite. It’s perfect for a rainy movie day, too.

Pros:

  • Closable seat-belt slots for travel, strollers, and more
  • Dual shoulder snaps and full-length inverted zipper
  • Wool and cotton for 4-season breathability

Cons:

  • Pricey
  • The zipper’s location isn’t ideal

Morrison Outdoors Little Mo Baby Sleeping Bag

Just add a tent

This synthetic down-like sleep sack is a baby's version of a sleeping bag.
Best For Camping

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There’s no need to leave your little adventure buddy behind. Made just like a sleeping bag but with sleeves and a zippered sack bottom, this is basically a puffy sleeping bag, but with minimal puff and much less hassle. Made with a synthetic that mimics down, this is a combination of lightweight and warmth that allows for easy packability and unparalleled sleeping comfort for tots just learning the ropes of camping. Meeting all AAP-recommended guidelines for safe infant sleeping, there are no worries on safety, either.

Pros:

  • Zips down for convenience
  • Fold-over hands for warmth
  • Easy to wash – just toss right in the washing machine

Cons:

  • The length leaves a little to be desired for taller kiddos
  • For children that sleep warm, this might be a bit too much

Frequently Asked Questions

Are baby sleeping bags safe?

The idea behind a baby sleeping bag or sleep sack is that they eliminate the need for blankets. This helps to not only keep your baby warm, but safe from SIDS-related sleep safety issues as well.

Are sleep sacks safe once babies can roll over?

Although baby sleeping bags are roomy and can get twisted around their legs, they do not pose any increased risk for babies who can roll over. In fact, they’re safer than swaddling a baby who can roll around (a big no-no). With a few additional safety measures in place, a sleep sack is a perfectly safe option for keeping your baby warm.

About the Author

Tana is a yoga teacher, outdoor enthusiast, and, most importantly, a mama. As a mom of two kids under five, Tana makes it a point of showing them the joys of nature and art. Whether you’re a seasoned mother or just starting parenthood, Tana will help you discover the best toys, gadgets, and everything in between for you and your family.

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