10 Best Sleep Sacks 2021

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

HALO Sleepsack 100% Cotton Swaddle – ⭐ Best Overall Sleep Sack

12650 by Halo

  • Release date: 04/07/2017
  • Color: Heather Gray
  • Weight: 0.64 pounds
  • Dimensions: 9 x 0.5 x 11 inches
HALO Sleepsack 100% Cotton Swaddle
  • The original wearable blanket replaces loose blankets in the crib for a safer environment; the 3-way swaddle ensures your baby's best sleep and an easy transition when it's time to stop swaddling; number 1 choice of hospital nurseries to promote safe sleep
  • Made with 100% cotton fabric, double knit construction is soft and a little stretchy, perfect for swaddling; TOG Rating of 1.5 offering the right comfort for moderate seasons or climates, and can be layered with warmer sleepwear for cooler temperatures
  • Generously sized swaddle fasteners offer adjustability for a perfect fit; 3-way adjustable swaddle allows Arms-In to reduce startle reflex, One-Arm-Out for self-soothing, and Two-Arms-Out for easy transition from swaddling to Halo's SleepSack
  • Inverted zipper opens from the bottom for easy diaper changes without undoing the swaddle; sleeveless to reduce the risk of overheating; arm and neck openings sized for a safer fit
  • Available here in Small size designed for babies weighing between 13 and 18 pounds who are generally 3-6 months old and 23-26 inches long; discontinue swaddling when the baby shows signs of rolling over or breaking out of the swaddle wrap.

Burt's Bees Baby Baby Beekeeper Wearable Blanket

LY24786-MDN-LG by Burt's Bees Baby

  • Color: Midnight Stripe
  • Weight: 0.65 pounds
  • Dimensions: 5 x 5 x 0.7 inches
Burt's Bees Baby Baby Beekeeper Wearable Blanket
  • Burt's Bees Baby - Beekeeper Wearable Blanket
  • Carefully sized for baby to move around freely and safely
  • Zipper opens from bottom for easy diaper changes with interior zipper guard & zipper cover for added safety
  • 0.5 TOG - Pair with any of our pajamas for maximum comfort
  • 100% organic, GOTS certified*, breathable cotton – great for sensitive skin and to prevent overheating

Hudson Baby Unisex Baby Plush Sleeping Bag

51721XL by Hudson Baby

  • Color: Pink Clouds Plush
  • Dimensions: 5 x 5 x 0.7 inches
Hudson Baby Unisex Baby Plush Sleeping Bag
  • Safe sleep wearable blanket sleep sack
  • Made with 100% plush, cozy warm fabric
  • Soft, gentle and comfortable on baby's skin
  • Optimal for everyday use
  • New and improved zipper.

HALO Sleepsack 100% Cotton Wearable Blanket

4592 by Halo

  • Color: Sunshine Rainbows
HALO Sleepsack 100% Cotton Wearable Blanket
  • The original wearable blanket replaces loose blankets in the crib for a safer environment; the #1 choice of hospital nurseries to promote safe sleep
  • Made from 100% cotton interlock fabric with a TOG rating of 0.5, offers just the right comfort for warmer seasons or climates; can be layered with warmer sleepwear for cooler temperatures; double knit construction of cotton interlock fabric makes it extremely soft and a little stretchy, perfect for baby sleepwear
  • nique, roomy sack design recognized by the International Hip Dysplasia Institute as "hip healthy" - allows room for kicking but cannot be kicked off, so Baby stays warm and safe all night
  • Inverted zipper opens from the bottom for easy diaper changes; sleeveless to reduce the risk of overheating; arm and neck openings sized for a safer fit
  • Available here in Large size designed for babies weighing between 22 and 28 pounds who are generally 12-18 months old and 30-35 inches long

Hudson Baby Unisex Baby Cotton Sleeveless Wearable Sleeping Bag – 💲 Best Budget Sleep Sack

51044L by Hudson Baby

  • Color: Whale
  • Weight: 11 pounds
  • Dimensions: 5 x 5 x 0.7 inches
Hudson Baby Unisex Baby Cotton Sleeveless Wearable Sleeping Bag
  • Safe sleep wearable blanket sleep sack
  • Made with 100% cotton
  • Soft, gentle and comfortable on baby's skin
  • Optimal for everyday use
  • Affordable, high quality safe sleep wearable sleep sack / sleeping bag

HALO Sleepsack 100% Cotton Wearable Blanket

10761 by Halo

  • Release date: 04/07/2017
  • Color: Heather Gray
  • Weight: 0.33 pounds
  • Dimensions: 9 x 0.5 x 11 inches
HALO Sleepsack 100% Cotton Wearable Blanket
  • The original wearable blanket replaces loose blankets in the crib for a safer environment; the #1 choice of hospital nurseries to promote safe sleep
  • Made from 100% cotton interlock fabric with a TOG rating of 0.5, offers just the right comfort for warmer seasons or climates; can be layered with warmer sleepwear for cooler temperatures; double knit construction of cotton interlock fabric makes it extremely soft and a little stretchy, perfect for baby sleepwear
  • Unique, roomy sack design recognized by the International Hip Dysplasia Institute as "hip healthy" - allows room for kicking but cannot be kicked off, so Baby stays warm and safe all night
  • Inverted zipper opens from the bottom for easy diaper changes; sleeveless to reduce the risk of overheating; arm and neck openings sized for a safer fit
  • Available here in Large size designed for babies weighing between 22 and 28 pounds who are generally 12-18 months old and 30-35 inches long

Nested Bean Zen Sack – 👑 Premium Pick

by Nested Bean

  • Color: Stardust Grey
  • Weight: 11.25 pounds
  • Dimensions: 11.5 x 7.5 x 1.5 inches
Nested Bean Zen Sack
  • LIGHTLY WEIGHTED: On the chest, to give the feeling of your reassuring palm. The weighted pad is filled with non-toxic poly beads (same as those used in children’s toys) and was created using physio-therapy standards to give just the right amount of pressure. Moms report longer sleep in 1-3 nights
  • WEIGHT DISTRIBUTION: In the small (0-6 months) and medium (6-15 months) sizes, the weight is contained within the chick to mimic your palm. In the large (15-24 months) size, the weight is evenly distributed across the baby’s chest, making it perfect for older babies who roll over more.
  • MATERIAL: 100% soft, breathable cotton. Perfect for year-round use. TOG = 0.5. Completely washer/dryer safe and BPA, toxin and phthalate free. Exceeds safety standards - 12 mandatory and 7 voluntary tests passed.
  • SIZING: Comes in 0-6 months (7-18 lbs, 21-30 in), 6-15 months (16-26 lbs, 26-33 in) and 15-24 months (26-36 lbs, 31-38 in)
  • EASY TO USE: Two-way zipper system makes midnight diaper changes a breeze. The adjustable shoulder snaps allow this wearable blanket to grow with your baby and make it the perfect swaddle transition product.

Simple Joys by Carter's Baby 3-Pack Poly Sleeveless Sleepbag

1J992710 by Simple Joys by Carter's

  • Release date: 09/15/2020
  • Color: Stripes/Animals
Simple Joys by Carter's Baby 3-Pack Poly Sleeveless Sleepbag
  • Worry free safety tab keeps zipper away from baby's chin and neck
  • Zipper Closure
  • Trusted Carter's quality, every day low prices, and hassle-free packaging

HALO Sleepsack 100% Cotton Wearable Blanket

12998 by Halo

  • Release date: 03/19/2018
  • Color: Huggy Bears
  • Dimensions: 0.5 x 9 x 11.5 inches
HALO Sleepsack 100% Cotton Wearable Blanket
  • The original wearable blanket replaces loose blankets in the crib for a safer environment; the #1 choice of hospital nurseries to promote safe sleep
  • Made from 100% cotton interlock fabric with a TOG rating of 0.5, offers just the right comfort for warmer seasons or climates; can be layered with warmer sleepwear for cooler temperatures; double knit construction of cotton interlock fabric makes it extremely soft and a little stretchy, perfect for baby sleepwear
  • Unique, roomy sack design recognized by the International Hip Dysplasia Institute as "hip healthy" - allows room for kicking but cannot be kicked off, so Baby stays warm and safe all night
  • Inverted zipper opens from the bottom for easy diaper changes; sleeveless to reduce the risk of overheating; arm and neck openings sized for a safer fit
  • Available here in Medium size designed for babies weighing between 16 and 24 pounds who are generally 6-12 months old and 26-30 inches long

Love To Dream Swaddle UP

16-10101 by Love to Dream

  • Release date: 06/23/2016
  • Color: Gray
  • Weight: 0.31 pounds
  • Dimensions: 22 x 12 x 0.3 inches
Love To Dream Swaddle UP
  • Swaddling has been around for ages as it helps to prevent the startle reflex. But forcing the baby’s arms to their sides or over their chest prevents two natural behaviors that frustrate the baby and they fight to get their hands free.
  • First - Over 90% of babies sleep with their ARMS UP around their head when placed on their back to sleep. This is simply a baby’s natural and preferred way to sleep, just like in the womb!
  • Second - All babies are born with the need to SELF-SOOTHE by touching their face and sucking on their hands as they did in the womb. This medically proven behavior is how a baby calms and falls asleep on their own. Traditional swaddling prevents this.
  • The patented wings on the Swaddle UP allow the baby to both sleep with their arms in their preferred ARMS UP position and gives enough movement so they can SELF-SOOTHE, all while calming down the startle reflex.
  • The snug fit from our 4-way stretch fabric of 93% Cotton and 7% Elastane creates a familiar and secure feeling just like in the womb to calm the Moro (startle) reflex. Does not contain flame retardants or any harmful chemicals.

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