Mother and Baby

Your baby sleeping bag guide

Section: Sleep

A baby sleeping bag is a great option for new parents worried about how their baby is sleeping at night. Essentially, they're a wearable blanket for your baby to cocoon themselves inside of and there are loads of benefits to using them instead of traditional duvets and blankets.

Not only are baby sleeping bags great for keeping your baby comfortable and happy through the night, but according to the Lullaby Trust, a baby sleeping bag is amongst the essentials for a safe night's sleep for your baby as they can reduce the chance of sudden infant death syndrome (SIDS). They've put together this helpful guide to buying safer sleep products for your baby

What is a baby sleeping bag?

Much like sleeping bags for adults, a baby sleeping bag is an all-in-one comfort option which your baby can sleep inside of. As your little one twists and turns in the night, a baby sleeping bag ensures your baby won’t get tangled up in sheets and their head will remain safely uncovered.

What are the benefits to baby sleeping bags?

When adjusted correctly – fitting snugly but comfortably around the neck – a sleeping bag will mean your baby breathes easy all night. There’s also the added benefit of keeping your little one at the correct temperature through the night, which could mean fewer instances of waking up in the night (hopefully)!

baby sleep tog

How should my baby fit inside their sleeping bag?

Like the neck hole, baby’s arms should fit snugly through the armholes, so that they can’t pull them back inside the bag. Sleeping bags are normally designed with poppers so that size can be adjusted for smaller babies, and to make changing nappies and feeding easier. All bags should conform to the new British standard for baby sleeping bags (BS 8510:2009).

Check out our pick of the best baby sleeping bags here.

Which tog rating should my baby sleep bag be?

The tog rating on a sleeping bag determines how heavy the fabric is, just like grown-up sleeping bags. But unlike grown-up sleeping bags, your baby is unable to adjust themselves to a comfortable temperature so choosing the right tog is important. 

As a general rule, the warmer the room, the lower the tog should be and the colder the room, the higher the tog.

For under 14 degrees Celsius, pick a tog of 3.5, and for sleeping in a room above 25 degrees Celsius, a maximum tog of 0.5 will be enough.

A 2.5 tog is perfect for 17 – 21 degrees, and between 22 – 25 degrees pick a lightweight 1.5 tog count.

sleep tog bag

What should my baby wear inside the baby sleeping bag?

Wondering what clothing your baby should wear while in their sleeping bag? In warmer room temperatures, dress your baby in a short-sleeved cotton bodysuit, but for cooler nights more coverage will be necessary. A lightweight cotton bodysuit will be appropriate for mild nights and in the cold, layer a sleepsuit over the top. For more information, read our guide to dressing your baby for bed.

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  • Author: Lorna White Lorna White
  • Job Title: Digital Writer

Lorna is the digital executive and regular contributor for Mother&Baby. After running the Yours magazine website which specialises in content about caring for kids and grandchildren, she has now brought her expertise to the UK's #1 leading pregnancy and parenting magazine. Lorna specialises on a range of topics from potty training and nutrition, to everything and anything that will keep your tot occupied!

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Emily Thorpe - Digital Writer

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