Parents often tell us that choosing the right sleeping bag feels confusing. Should you choose a 0.5 TOG, 1.5 TOG or 2.5 TOG? What if the room gets warmer overnight? And what should your baby wear underneath?

The good news is that once you understand TOG ratings, choosing the right sleepwear becomes much easier.

In this guide we'll explain exactly what TOG means, when to use each sleeping bag and how to help your little one stay comfortable throughout the year.

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Mum fastening baby into the Pinstripe Smart Sleeping Bag

What does TOG actually mean?

TOG stands for Thermal Overall Grade.

Tog Quick Guide for Baby Sleeping Bags

It's simply a way of measuring how warm a sleeping bag is. Think of it like a duvet. The higher the TOG... the warmer it is.

A lower TOG is designed for warmer weather.

What should my baby wear underneath?

One of the biggest questions parents ask. Your sleeping bag works together with your baby's clothing.

A baby clothing guide chart titled 'How to dress for all seasons' showing room temperature ranges, sleeping bag togs, and line drawings of baby outfits with general dressing recommendations.

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Why choose bamboo?

A baby lying in the cot wearing the Marvellous Moons Smart Sleeping Bag 2.5 Tog with blue moon, planet and constellation print made from bamboo and organic cotton from GrowGrows

Bamboo naturally helps regulate body temperature. Instead of trapping heat... it helps little ones stay comfortable.

Benefits include:

  • breathable
  • moisture wicking
  • incredibly soft
  • gentle on eczema-prone skin
  • temperature regulating

➡️ Read our Ultimate Guide to Bamboo Baby Clothes

Why parents love our Smart Sleeping Bags

Unlike traditional sleeping bags... GrowGrows Smart Sleeping Bags grow with your little one.

Suitable from newborn to 24 months, parents don't need to buy multiple sizes.

Features include:

✅ Fold-up base

✅ Pushchair travel opening

✅ Two-way zip

✅ Bamboo & organic cotton

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Choosing the right TOG doesn't have to be complicated. Once you know your room temperature and how TOG ratings work, you can create a safe, comfortable sleep environment for your little one all year round.

Explore the GrowGrows range of Smart Sleeping Bags, available in 0.5, 1.5 and 2.5 TOG, thoughtfully designed to grow with your baby from newborn to 24 months.

Frequently Asked Questions

Can babies wear sleeping bags every night?

Yes, provided they're the correct TOG for the room temperature and fit properly.


Can my newborn use a sleeping bag?

Yes, provided the neck and armholes fit correctly.

GrowGrows Smart Sleeping Bags are designed from newborn through to 24 months.


Can babies overheat?

Yes.

Always monitor room temperature and avoid extra blankets when using a sleeping bag.


What TOG is best for summer?

Generally 0.5 TOG


What TOG is best for winter?

Generally 2.5 TOG


Are bamboo sleeping bags better?

Bamboo is naturally breathable and temperature regulating, making it an excellent choice for baby sleepwear throughout the year.

Chloé Ashton