Choosing the wrong TOG is the #1 reason babies wake up at night—even when everything else seems perfect.
If you’ve ever wondered what 0.5 TOG, 1.0 TOG, or 2.5 TOG really mean, this guide will help you choose the right bamboo sleep sack based on your baby’s room temperature.
| Room Temperature | Recommended TOG | What Baby Should Wear |
|---|---|---|
| 75°F+ (24°C+) | 0.5 TOG | Short sleeve onesie |
| 68–75°F (20–24°C) | 1.0 TOG | Light pajamas |
| Below 68°F (20°C) | 2.5 TOG | Warm pajamas |
What Does TOG Mean?
TOG stands for Thermal Overall Grade, which measures how warm a sleep sack keeps your baby.
👉 The higher the TOG, the warmer the sleep sack.
Why Bamboo Sleep Sacks Work Better
Even with the same TOG, fabric matters. A bamboo sleep sack is more breathable than cotton, helping regulate temperature and reduce overheating.
Common TOG Mistakes Parents Make
- Choosing a higher TOG “just in case”
- Ignoring room temperature changes
- Layering too much under the sleep sack
👉 Overheating is more dangerous than being slightly cool.
Looking for a summer-friendly option? Explore our 0.5 TOG bamboo sleep sacks .
You can also read our summer sleep sack guide for more tips.
What Should Baby Wear Under a Sleep Sack?
- 0.5 TOG: Lightweight onesie
- 1.0 TOG: Cotton pajamas
- 2.5 TOG: Warmer sleepwear layers
What About Active Toddlers?
For toddlers who stand or walk, a bamboo walker sleep sack provides better mobility and safety.
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Find the Perfect TOG for Your Baby
Choose the right sleep sack for every season and temperature.
Frequently Asked Questions
What does TOG mean?
TOG measures how warm a sleep sack keeps your baby.
What TOG is best for summer?
0.5 TOG is best for temperatures above 75°F.
Can my baby overheat in a sleep sack?
Yes, using the wrong TOG or too many layers can cause overheating.
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