Baby Sleep Sacks

Baby sleep sacks are a wonderful product that is relatively new and for some parents it'll be the first time you read about them.  A lot of time and effort has gone into studying and understanding the best sleeping positions and safest crib environment and the two constants are that a baby should sleep on their back and a crib should be free of clutter. 

A baby spends a lot of time sleeping and growing in the first several months and keeping them safe during their many hours asleep is extremely important.  A sleep sack will help ensure that your baby stays sleeping safely on their back with the added benefit of keeping them warm and comfortable. 

baby sleep sacks

If you are wondering what they are exactly, they can best be described as a wearable blanket and function as a sleeping bag of sorts with holes for baby's arms and head.  

The sack allows a baby to move their legs freely while helping to prevent them from flipping onto their stomachs which can be unsafe.  They also help babies feel secure and are a great transition from swaddle blankets that are very similar except that they don't have arm holes. 

Since baby sleep sacks are designed for warmth, you won't need to have a blanket in the crib.  It's been determined from several studies that a crib should be completely clear of any clutter including blankets, positioners, stuffed animals, toys and bumper pads.  The only thing that should be in the crib is your baby. 

The benefits of baby sleep sacks are numerous and include the following:

  • Alleviates the need for extra blankets 
  • Supports baby sleeping on their back which is the safest position for your baby
  • Sleeveless to reduce overheating
  • Unzips from the bottom for easy diaper changing
  • Adequate room for baby to kick but won't fall off during the night
  • Used in hospitals and nurseries world-wide 

The greatest benefits is that they are safe and they replace loose blankets that present a safety risk. We'll talk about sleeping safety below so be sure to continue reading. 


Baby Sleep Sacks Safety

Sleep sacks can be worn on their own or they can be worn with an undershirt depending on the thickness of the material, temperature and time of year.  The thickness and thermal insulation of sleep sacks is measured using the TOG scale and ranges from 0.5-2.5.  If you are looking for an all season sleep sack we recommend a TOG of 1.0 that can be worn with varying under clothing to adjust appropriately. 

There are many different sizes that can be determined either by age or weight of your baby.  The sizes range from Preemie which is ideal for babies from birth to 5 lbs all the way up to X Large for toddlers up to 24 months old or 36 lbs. 

back is best sleep sack

The back is best campaign is an excellent initiative that is trying to spread the word about the importance of babies sleeping on their back.  Sudden Infant Death Syndrome or SIDS is a very real concern and can be prevented by educating yourself and using products that are approved for safe sleeping. 

A sleep sack promotes babies sleeping on their back and alleviates the necessity of having extra blankets and pillows that are often used to make baby feel comfortable in their crib.  There are a few important guidelines you should follow to help ensure your baby is sleeping safely. 

The following are rules that should be followed:

  • Always place your baby on their back
  • Always dress your baby so they don't overheat
  • Never use a blanket, pillow or other sleep positioning device
  • Never use adult bedding that can get entangle and cause suffocation 
  • Never co-sleep which can lead to baby being crushed, suffocated or smothered 

It can be a bit overwhelming with all the information available about safety and what should and shouldn't be used.  It's important to educate yourself and use common sense.  The likelihood of an accident is very low but it's worth taking every precaution to ensure your babies ultimate safety. 


Baby Sleep Sack Sizes

Halo SleepSack Micro-Fleece Swaddle - Small

The Halo SleepSack Micro-Fleece Swaddle is ideal for babies as a 2-in-1 adjustable sleeping device.  It transitions from a swaddle to a sleep sack wearable blanket as your baby gets older.  It's made of 100% polyester, is ultrasoft for your baby's comfort and available in 11 colors. 

halo sleepsack swaddle

Halo SleepSack Micro-Fleece - Medium

The Halo SleepSack Micro-Fleece is sized to fit babies between 16 and 24 lbs comfortably.  It replaces loose blankets and promotes safe sleeping with the added convenience of zipping from the bottom for easy diaper changing.  Available in 13 colors. 

halo medium sleepsack

Halo SleepSack 100% Cotton - X Large

The Halo SleepSack 100% Cotton is the largest version and is available in 34 attractive colors and patterns.  It has a TOG of 0.5 and is ideal for babies between 26 and 36 lbs. This wearable blanket is approved by the American Academy of Paediatrics for safe sleeping. 

cotton x-large sleep sack

Baby sleep sacks are a safe and reliable option for keeping your baby warm and safe while they are sleeping.  This product is recommend and used in hospitals nationwide and recognized as hip healthy by the International Hip Dysplasia Institute.


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