Best Sleep Sacks 2024 – Forbes Vetted

Material: 97% bamboo rayon, 3% spandex, 100% polyester fill | TOG: 0.5, 1.0, 2.5 | Sizes: S to XL | Colors: 36 | Care: Cold machine wash on gentle, lay flat to dry

Key features:

A majority of those we spoke to for this story, including parents, sleep consultants and pediatricians, named the mom-founded Kyte Baby Sleep Bag as their favorite. “I personally love the Kyte Baby sleep sacks because they were developed for babies with sensitive skin as well as safe sleeping,” says Jessica Bryant, pediatric sleep strategist of Sleep Happy Consulting. “Parents can easily find a variety of thicknesses [thermal overall grades, or TOGs] of sleep sacks for their baby’s unique needs, all while dressing their baby in a sack that feels buttery soft.”

The bamboo material is incredibly soft and helps to keep babies and toddlers at the ideal temperature. Plus, it comes in three TOGs: 0.5, 1.0 and 2.5. We also love that the Kyte Baby colors and prints are so beautiful, with lots of options to choose from.

What the parents say: “Not only is it incredibly soft, but the length means that you can use it for an incredibly long time,” says co-author Lex Goodman. “I bought our most recent one when my son was 16 months, and he wore it until he was a few months shy of his third birthday. He did learn how to unzip it at around 18 months, but I found I could outfox him by putting it on him backwards (so the zipper was in the back).”

Material: 100% organic cotton, 100% polyester fill | TOG: 0.5, 1.5 | Sizes: S to XL | Colors: 24 | Care: Cold machine wash on gentle, tumble dry low

Key features:

This bestseller on Amazon is affordable, made with 100% organic cotton and comes in several sizes and many prints. Two parents we spoke with highlighted this sleep sack’s zipper, which opens from the bottom and has a cover over the zipper’s tab to keep your baby from letting themselves out (or at least slow them down). It’s designed with an extra-long fit so you can use it for months to come and is also available in two weights. It’s quite affordable too, so you can stock up on several and avoid the laundry room a bit longer.

What the parents say: Four parents we spoke with highly recommend Burt’s Bees’ Beekeeper Wearable Blanket, particularly its high-quality material. Alicia Hallett-Chan, Forbes creative director of editorial and brand, says this was her favorite sleep sack to use with her son from when he was 3 months old until he sized out, calling out its various weights and cute patterns. Deputy editor Rebekah Lowin adds that the sleep sack is a “cozy addition” to her son’s bedtime routine and holds up beautifully even after several washes. “We think it’s the perfect weight to keep him comfortable overnight; it’s lightweight but not too thin, and it’s served as a helpful sleep cue for him, too.”

Material: Merino wool lining, organic cotton outer | TOG: None (naturally temperature-regulating) | Sizes: 2 to 24 months | Colors: 18 | Care: Machine wash on low with mild detergent, hang dry

Key features:

• Temperature-regulating wool for year-round comfort
• Unique underarm adjustments for the best fit
• Seatbelt slots
• GOTS, OEKO-TEX Standard 100 and RWS certifications

At first glance, the price of the Woolino sleep sack surprised us. While the Kyte Baby is already steep at $50 or more, this beautiful and breathable merino wool option is almost double. But it’s absolutely worth it for the quality and because you can use it for nearly two years without sizing up. There’s also an extra snap under the armpits to get a bigger fit as your baby grows. The merino wool keeps your baby cool in warm weather and warm in cool temperatures, which helps ease any fears of overheating. It unzips both ways or unsnaps at the shoulders, so you have multiple options for removal.

“It’s really amazing,” says certified child sleep consultant Carolynne Harvey of Dream Baby Sleep. “You can adjust the fit with shoulder straps so that it sits on your baby perfectly. It also has seatbelt slots if you need to transfer your sleeping baby.”

What the parents say: “This is one of the most plush, cozy sleep sacks I’ve come across, and you’ll immediately realize that it’s hand-me-down quality,” says co-author Goodman. “I love that the Woolino comes with a paper thermometer with suggestions of how to dress your child for sleep at each temperature, offering some nighttime peace of mind.”

Material: 68% Tencel lyocell, 26% organic cotton, 6% spandex, Dupont Sorona performance fiber fill | TOG: 0.5, 1.0, 2.5 | Sizes: 0 to 6 months, 6 to 18 months, 18 to 36 months | Colors: 8 | Care: Machine wash on gentle, tumble dry on low

Key features:

• Two-way zipper
• Roomy through the hips and legs
• Certified Standard 100 from OEKO-TEX

Soft to the touch and made from sustainable Tencel, the Loulou Lollipop Sleep Bag is a luxurious option. Parents love that it has a two-way zipper, an all-season 1.0 TOG (in addition to a more lightweight 0.5 TOG), beautiful prints and plenty of room for little ones to move and get comfy. It’s also lightly insulated and manufactured at an OEKO-TEX Standard 100 certified factory, meaning it’s free from toxic chemicals.

What the parents say: Co-author Elizabeth Mitchell Kadar owns this sleep sack in two TOG ratings, 1.0 and 2.5, and they’re her favorites for her toddler son. “Not only are the prints super cute and fun, but the sacks themselves are extra cozy and fit well up top with lots of wiggle room in the leg area.” After six months of washing and drying on delicate, she says there’s no pilling and the sacks still look as good as new. “I also find the two-way zipper super easy to use and zip/unzip quickly without snagging.”

Material: 100% cotton | TOG: 0.5, 1, 1.5 | Sizes: S to XL | Colors: 41 | Care: Machine wash warm with like colors, tumble dry low

Key features:

• Unzips from the bottom for fuss-free diaper changes
• Hip-healthy and roomy design

Another beloved standby, the Halo Baby Sleepsack offers many of the same pros of more expensive options but at a more palatable price. Dr. Jessica Madden, who’s board-certified in pediatrics, neonatology and lactation, says, “I like Halo sleep sacks because they are affordable, easy to put on and take off, come in several sizes (including ones made for preemies), are durable and wash up well, and are made from different materials for use during warmer and colder months.”

In addition to this extremely lightweight cotton option, which is gentle on skin and perfect for the warmer months, there are fleece ones (with a 1.0 TOG rating) in all colors and prints. These sleep sacks have “Back Is Best” embroidered right on the front to serve as a gentle reminder to all caregivers. The zipper opens from the bottom for nighttime diaper changes, and there’s a zipper cover to help prevent scratches. Note, however, that some parents complain the zipper can be hard to align when getting a fussy baby into the sack.

What the parents say: Many parents rave about the weight and generous size of this sleep sack, noting that it’s lightweight but still warm and roomy. “We used several different sleep sacks, but the Halo ones are my favorite,” says Vetted editor Margaret Badore, who has a 2-year-old son. “They were the hardest for my son to take off as he got bigger.”

Material: 95% cotton, 5% elastane | TOG: 0.2, moderate, 1.0 | Sizes: Newborn, small, medium | Colors: 18 | Care: Machine wash on gentle, tumble dry on low

Key features:

• Unique wings for arms-up position
• Twin zipper
• Hip-healthy product approved by the International Hip Dysplasia Institute

If you’ve ever let your newborn snooze unswaddled, you may notice many babies sleep with their arms above their head. The award-winning Love To Dream Swaddle Up is designed with unique patented wings that are great for babies who like to sleep with their arms up. Parents don’t have to worry about their little Houdini breaking out of this sleep sack because they can’t. It’s hip-healthy with plenty of room for movement and features a twin zipper so you can change a dirty diaper more easily.

What the parents say: Janet Yin, Forbes art director of content and design, says that the Swaddle Up “worked wonders” for her and her baby boy his first three months. “It helped reduce the startle reflex by keeping his arms in place. We initially started with those Velcro swaddles, but he always managed to get his arms out. Wince transitioning to Love To Dream sleep sacks, he was able to sleep at least one cycle most of the time,” she shares.

Material: 95% bamboo viscose, 5% spandex | TOG: 1.0, 2.6 | Sizes: 3 to 9 months, 9 to 18 months, 18 to 24 months, 24 to 36 months | Colors: 11 | Care: Cold wash on delicate, tumble dry on low heat or air dry

Key features:

• Long sleeves
• Unique 4-way zipper
• Certified Standard 100 by OEKO-TEX and JPMA tested

The Gunamuna Long Sleeve Sleep Bag is another wonderful option for winter or cooler households. This is one of the few long-sleeved sleep sacks on the market, but that’s not its only selling point. The full-body coverage and microfiber filling adds extra warmth to help soothe little ones, especially those transitioning from a swaddle. The sleep sack feels something like a luxury down comforter but even softer because of the bamboo rayon. The patented four-way asymmetrical zipper makes it easier for grown-ups to get babes in and out, while with a zipper cover at each end to make it harder for littles to get themselves out. It’s Oeko-Tex Standard 100 Certified (free from harmful chemicals) and JPMA tested for safety. 

What parents say: Cory Baldwin, executive director of commerce content and strategy, tells us, “It’s super soft; you can tell it’s high quality just by touching it. With the long sleeves it is very warm, so we really only use it when we are traveling somewhere chilly, like when we stay at Grandma’s in the winter (my baby’s room at home is temperature-controlled). I also have a sleeveless one from the brand that we use more regularly.”

Material: 97% bamboo rayon, 3% spandex | TOG: 0.5, 1.0, 2.5 | Sizes: 6 to 18 months, 18 to 36 months, 4T | Colors: 40 | Care: Machine wash on gentle, lay flat to dry

Key features:

• Fitted ankle cuffs for mobility and warmth
• Dual zipper

If you have an older baby who has grown accustomed to the comfort of the Kyte Baby sleep sack (or any sleep sack for that matter), the Sleep Bag Walker is a good next step. This plush-like contraption comes in sizes up to 4T, one of the largest we’ve seen. We appreciate that this wearable blanket still has a two-way zipper to make middle-of-the-night bathroom runs and diaper changes smoother. The fitted ankle cuffs let your baby move comfortably and safely, which is especially important if they’re already out of the crib.

What the parents say: Co-author Kadar used this walking sleep sack for her 18-month-old and can’t get over the buttery softness of the fabric and its generous sizing. “When it’s warm, I put it on him with just a diaper underneath and he sleeps like a dream.” The only thing she doesn’t love is that you need a footed sleeper underneath or socks (which toddlers are likely to kick off) to keep their tiny toes warm.

Material: Intellithread (temperature-regulating blend of polyester and rayon) | TOG: 1.5 | Sizes: Newborn, small | Colors: 4 | Care: Cold machine wash on gentle, tumble dry on low

Key features:

• Temperature-regulating fabric prevents overheating
• Three-way design lets baby sleep either arms-in, arms-out or one arm out
• Recognized as hip-healthy by the International Hip Dysplasia Institute

The transition from a swaddle to a sleep sack can be a rough one, but a transitional sleep sack can bridge the gap. You can use it as a swaddle first, and later let your baby’s arms out when they’re ready to roll. This Halo Baby Sleepsack, which uses “Intellithread” technology to keep your baby at the right temperature, receives rave reviews from the experts and parents we interviewed. An inverted zipper allows for easy diaper changes, while scratch-free zipper covers keep their skin protected as well. The Velcro-like closures are strong, so you can stress less about your little one busting out.

What the experts say: “I love how you can use it as a swaddle, with one arm out or both arms out,” says Dream Baby Sleep’s Harvey. “It’s roomy for proper hip development and the fabric is soft and gentle on baby’s skin.” Many moms and dads, along with Harvey, recommend sizing down if your baby is in between sizes, as these sacks tend to run a bit big.