Choosing the Weight of Your Sleeping Bag

Tog Rating

A tog measurement is a European warmth rating: the higher the tog, the warmer the product. Cotton baby sleeping bags such as Love to Dream, Ergopouch or Purflo are generally available in three tog ratings; 0.2 - 0.5 Tog for temperatures above 25 degrees, 1.0 Tog for temperatures between 21 and 24 degrees and 2.5 Tog for temperatures 16-20 degrees. Some brands also offer 3.5 Tog Bags for temperatures 14-16 degrees.

Please note: A number of external factors determine the tog rating of the sleeping bag that should be used. These include the quantity of clothing the baby is wearing, the temperature of the infant’s bedroom, the baby’s health and the amount of bedding necessary to keep an individual infant warm – this may vary as it does for adults.

Check your baby regularly to ensure they do not overheat.

Our Ergopouch baby sleeping bags and some The Sleep Store sleeping bags come with a free nursery thermometer to help you select which tog baby sleeping bag to use and what sleepwear to put your baby in.

What to Wear Guidelines

The table below shows guidelines for the optimal combination of clothing layers and bag weight based on your baby's nursery temperature. Please remember that these are recommendations only as all babies are different. You will soon discover the best level of clothing for your individual baby.

Which weight of Baby Sleep Bag should I buy?

Our 2.5 tog sleeping bags are ideal for Autumn, Winter and Spring and can be used right up until the Summer nights become warm. If your nursery is usually below 20°C, we recommend a 2.5 tog sleeping bag.

However, if you live in a particularly mild region or if you have well insulated and heated accommodation and your nursery is usually 21°C or above, you may prefer a 1.0 tog bag for year-round use. Our Ergopouch and The Sleep Store 1.0 tog bags are ideal for use during the Summer months when the nights are warmer and are also very useful in early Spring and Autumn for day-time naps whilst your baby is still in a 2.5 tog Purflo, Baby Basics or ErgoPouch at night.

The 0.5 tog rated baby sleep bags are for use in high Summer, for holidays abroad, or if your child is unwell and has a raised temperature. They are also useful for day sleeps year round, when your child is already dressed in clothing. The Sleep Store, Ergopouch, Purflo and Love to Dream have these extremely lightweight bags for summer.

3.5 tog is for cold winter temperatures of 12 - 15°C.

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