Winter Sleep Advice for Your Baby

As the nights get colder, it’s important to make sure your baby stays warm – but not too hot – at night. We’ve put together some tips to keep your little one comfortable and safe this winter.

Check the room temperature

Invest in a thermometer to check the temperature of your baby’s room. It’ll give you reassurance at a glance, and allow you to make adjustments to make sure they’re comfortable and safe.

A baby’s room should feel fresh at night, and not too ‘cosy’ - you probably won’t need to keep your heating on all night to maintain it. The ideal temperature is 18°C, so aim to keep the room between 16-20°C.

In the bag

Sleeping bags are a popular sleep solution, because they help to prevent your baby wiggling under their covers or kicking them off and waking up cold. Choose the right tog rating for your baby’s room temperature, and make sure the bag fits well. They usually have a weight recommendation, and look for a bag that fits snugly enough on baby’s ribs and shoulders that they can’t slip down inside it, and with a loose enough fit at the bottom to let them move their legs freely.

Layer up

The best way to regulate your baby’s body temperature in bed is to use layers of bedding, which can be easily added and removed. Keep a little pile of spare blankets for when they’re in the wash, and stick to breathable, natural fibres like cotton.

Place your baby in the ‘feet to foot’ position in their cot, so they can’t wriggle down under their blankets. Remember that a folded blanket counts as two layers.

As a guide, it's recommended that you use the following:

Room Temperature  Sleeping Bags  Blankets 
 21-23°C  Short sleeved vest or bodysuit
+ 1 tog sleeping bag
 Short sleeved vest or bodysuit
+ a very light sheet or blanket
 19-21°C  Long sleeved vest or bodysuit
+ 1 tog sleeping bag
 Long sleeved bodysuit
+ 1 blanket
 15-19°C  Long sleeved bodysuit
+ 2.5 tog sleeping bag
 Long sleeved bodysuit
+ 2 blankets
 12-15°C  Long sleeved bodysuit
+ 3.5 tog sleeping bag
Long sleeved bodysuit
+ 3-4 blankets 

Remember that if your baby is ill with a high temperature, they'll need less bedding.

Check your baby

Feel your baby to check if they’re getting too hot – touch their tummy to see if they’re too hot or cold. If they’re sweaty, take a layer of bedding off, and if they’re cold, add another blanket.

Their hands and feet will often feel cold, so don’t worry or add extra bedding if your little one has chilly fingers at night – this is normal.

Safe sleep advice

Never use a hot water bottle or electric blanket in your baby’s cot, and don’t put them to sleep with a hat or hood on, no matter how cold the room is.

Overheating is linked to the risk of SIDS, so it’s important to read the up-to-date information and safe sleep advice available online, or ask your midwife or health visitor.

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