Understanding TOG Ratings: Keeping Your Little One Comfortable All Night Long
- Rover Baby Goods
- Mar 25
- 2 min read
Updated: Mar 31
As parents, we all want our children to sleep soundly through the night. One of the key factors in achieving this goal is maintaining the right temperature for your little one. This is where TOG ratings come in – a crucial but often misunderstood aspect of children's sleepwear, especially sleep sacks.

What is a TOG Rating?
TOG stands for "Thermal Overall Grade," and it's a measurement system used to indicate the warmth of a garment. Originally developed in the UK, TOG ratings tell you how well a fabric insulates heat. The higher the TOG rating, the warmer the garment will keep your child.
Why TOG Ratings Matter for Sleep Sacks
Did you know that toddlers spend approximately 4,380 hours a year sleeping? That's nearly half of their time! With so many hours spent in sleepwear, ensuring your child is at the right temperature isn't just about comfort—it's about safety too.
Unlike adults who can adjust blankets throughout the night, toddlers rely on their sleep sacks to maintain a consistent temperature. Too warm, and they risk overheating; too cool, and their sleep might be disrupted.
Common TOG (Warmth) Ratings Explained
Sleep sacks typically come in several TOG ratings: (see our sleeping temperature tips)
0.5 TOG: Ideal for warm rooms (75-80°F / 24-27°C)
1.0 TOG: Perfect for standard room temperatures (70-74°F / 21-23°C)
2.5 TOG: Best for cooler rooms (65-69°F / 18-20°C)
3.5 TOG: Designed for cold rooms (below 65°F / 18°C)
Choosing the Right TOG for Your Child
When selecting a sleep sack, consider:
Room temperature: The most important factor in choosing the right TOG rating
Your home's climate control: Do you have air conditioning or heating that keeps temperatures consistent in your child's room?
Your child's preferences: Some children naturally run hot or cold
Layering: What will your child wear underneath the sleep sack?
Beyond TOG: Material Matters
While TOG ratings are important, the material of the sleep sack also plays a significant role in your child's comfort. At Rover Baby Goods, we use 100% organic cotton from GOTS-certified facilities, which offers several benefits:
Breathability: Allows air to circulate, preventing overheating
Temperature regulation: Helps maintain a comfortable body temperature
Gentle on sensitive skin: Reduces the risk of irritation
Sustainability: Grown without harmful chemicals or pesticides

Finding the Perfect Balance
The perfect sleep sack combines the right TOG rating with thoughtful design features. Our toddler sleep sacks include fold-over footies to keep little feet warm, two-way YKK zippers for easy diaper changes, and zipper covers to prevent curious toddlers from unzipping themselves.
Remember, a well-rested child makes for a happier household. By understanding TOG ratings and choosing the right sleep sack for your toddler, you're setting the stage for peaceful nights and energetic days.
Sweet dreams from all of us at Rover Baby Goods!
Disclaimer: The information provided in these articles is the result of hours of research, personal scenarios, and communication with guardians of toddlers. It’s for informational purposes only and isn’t a substitute for pediatric advice.