TOG is a unit of measure of thermal insulation used in the textile trade. The British "TOG" value is the international standard measurement of a blanket's thermal effectiveness (how well it keeps you warm).
Keep in mind that layering allows great flexibility in keeping babies warm and cozy without overheating.
The HALO SleepSack wearable blanket is suitable for a wide range of temperatures by adjusting the clothing worn underneath it. Babies can wear anything from just a diaper, to a long sleeve bodysuit or a cotton coverall.
All SleepSack fabrics breathe and wick moisture to avoid overheating.