The safest room temperature for your baby is between 16°C and 20°C.
When babies get too hot the chance of sudden infant death syndrome (SIDS) increases, which is why The Lullaby Trust recommends that the rooms where your baby sleeps should be kept at a temperature of between 16°C and 20°C.
This can feel cool to adults, so it’s best to measure temperature using a thermometer such as a Tommee Tippee Room and Bath Thermometer or a Groegg in the rooms where your baby sleeps.
Studies have also shown that sharing a room, but not a bed, with your baby for the first six months can reduce the risk of Sudden Infant Death Syndrome (SIDS).
To help keep your baby at a safe and comfortable temperature when sleeping, you should only use bedding such as a baby sleep bag, not loose sheets and blankets in their cot. Until they’re 12 months old, you should avoid using soft, bulky bedding such as duvets, quilts or blankets as these can cause overheating and increase the risk of SIDS.
How to check if your baby is too hot or too cold
Feel your baby’s tummy or the back of their neck. If their skin is hot or sweaty, remove one or more layers of their bedclothes or bedding. Your baby’s hands and feet will usually feel cooler. This is normal.
What if my baby is unwell?
If your baby is unwell, don’t be tempted to wrap them up more warmly. Babies who are unwell need fewer bedclothes, not more.