When choosing baby sleepwear, it helps to understand the difference between fabric weight and TOG.

The weight — measured in GSM (grams per square meter) or ounces — refers to the physical heaviness of the fabric, while TOG measures the warmth and insulation the garment provides. Most baby sleep garments fall within a TOG range of 0.5 to 3.5, with lighter best for warmer rooms and higher ideal for cooler temperatures.

It’s important to consider a garment’s TOG in relation to the room temperature to create a cozy and safe sleep environment. These are general guidelines, and every baby is unique. Always check your little one’s body temperature and adjust sleepwear, layers, or bedding as needed. With a little observation and care, you’ll quickly find the perfect balance to keep your baby snug, comfortable, and sleeping soundly.

To help make the best choice, our guide below offers a helpful reference with estimated TOG ratings based on fabric type and weight — a simple tool to guide you toward the ideal sleepwear for your baby’s needs.

 

🪶 Fabric Weight & TOG Guide 

Fabric Composition Print Styles Weight, GSM Estimated* TOG
Silky Modal – Summer 96% Modal, 4% Elastane 160 0.6 – 1.0
Classic Brushed  96% Polyester, 4% Elastane
160 0.8 – 1.2
Bamboo Organic Cotton 65% Bamboo, 28% Organic Cotton, 7% Elastane 190 1.0 – 1.4
Classic Brushed –Rib 96% Polyester, 4% Elastane 190 1.2 – 1.6
Silky ModalClassic 96% Modal, 4% Elastane 200 1.2 – 1.6
Brushed Viscose  Rib 68% Polyester, 24% Rayon, 4% Elastane 200 1.4 – 1.8
Silky Modal Rib 96% Modal, 4% Elastane   230 1.6 – 2.0
Plush Dreams 68% Polyester, 24% Rayon, 4% Elastane   200 1.8 – 2.2


 

🌡️ TOG Temperature Chart

Room Temperature (°F) Recommended TOG
75 – 80°F 1.0
69 – 74°F 1.0 – 2.0
50 – 68°F 2.0 – 3.0

 


 

💡 Tip for Parents:

  • Babies sleep best when dressed for the room temperature.

  • Use lighter TOG (≤1) in warmer rooms and higher TOG (>1) when it’s cooler.

  • Always check your baby for signs of overheating including higher body temperature, redder skin color, and faster heartbeat. If your baby is overheated, remove layers of clothing or turn down the thermostat. Some signs of being too cold include lips, fingers or arms turning bluish-purple. If your baby is too cold, add layers of clothing or turn up the thermostat.