As summer approaches, parents start to rethink their little one's bedtime attire. The warmer weather means it's time to swap out those heavy winter sleep sacks for something more suitable for summer. But with so many options on the market, how do you pick the perfect sleep sack for your baby? Here’s a comprehensive guide to help you make the best choice.


Understanding Sleep Sacks

Sleep sacks, also known as wearable blankets, are a safer alternative to loose blankets in the crib. They provide comfort and warmth while reducing the risk of Sudden Infant Death Syndrome (SIDS) by eliminating the dangers of loose bedding. When choosing a sleep sack for summer, several factors need to be considered, including material, size, design, and tog rating.


Material Matters

Bamboo, known for its moisture-wicking properties, is a great option for keeping your baby cool and dry. It's also incredibly soft and hypoallergenic.  Organic Cotton or Muslin are also good choices for warmer nights.


Tog Rating

The tog rating measures the warmth of the sleep sack. For summer, you'll want a low tog rating to ensure your baby stays cool.  

  • 0.2 - 0.5 tog: Ideal for hot summer nights and rooms with temperatures above 24°C (75°F).
  • 1.0 tog: Suitable for mild summer nights and rooms between 20°C to 23°C (69°F to 74°F).

Avoid higher tog ratings as they are designed for cooler weather and could lead to overheating. 


Sizing and Fit

Choosing the right size is essential for safety and comfort. A sleep sack that's too big could cover your baby's face, while one that's too small can be restrictive and uncomfortable. Most brands provide size charts based on your baby's weight and height. Make sure the neck and armholes are snug enough to prevent the baby from slipping inside the sack, but not so tight that they restrict movement.


Design Features

Look for sleep sacks with the following features to ensure convenience and safety:


Zippers: A two-way zipper is highly practical for easy diaper changes without fully undressing your baby. Look for zippers with covers to prevent them from scratching your baby’s skin.

Sleeveless Design: Sleeveless sleep sacks help with air circulation and prevent your baby from overheating.

Machine Washable: Babies can be messy, so a sleep sack that’s easy to clean is a must. Check that the material retains its softness and shape after washing.



Picking the right sleep sack for summer involves balancing comfort, safety, and practicality. Prioritize breathable materials like cotton, muslin, or bamboo, and opt for a low tog rating to keep your baby cool. Ensure the fit is right and look for convenient features like two-way zippers.

Happy sleeping, little ones!


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