When summer heatwaves hit, sleep can become a struggle – especially for babies. If your little one is fighting naps or waking up clammy, you’re not alone. Hot, sticky nights are hard for everyone, but they’re particularly unsettling for tiny bodies that can't regulate temperature as easily.
This guide shares simple, practical ways to help your baby stay cool and sleep more comfortably – all tailored for UK parents dealing with warmer nights (and homes without air con).
What's the Ideal Temperature for Baby Sleep?
The recommended temperature for a baby’s sleep space is 16–20°C. Unfortunately, that’s hard to maintain during warm spells in the UK. Here’s how to monitor and manage the heat:
- Use a room thermometer – small changes feel big to a baby
- Ventilate early morning and late evening by opening windows
- Close blinds or curtains during peak heat hours
- Use a fan (not pointed directly at the baby) to circulate air
What Should My Baby Sleep In?
Layering is key – even in summer. Try:
- Muslin swaddle or light cotton sleeping bag (0.5 tog)
- Short-sleeve vest or just a nappy if it’s over 24°C
- Light muslin or bamboo blanket tucked in firmly if needed
Natural fabrics like cotton and bamboo are breathable and help regulate temperature. Avoid synthetic materials, which can trap heat.
Tips to Keep Baby Cool Before Bed
- Offer a lukewarm bath before bedtime – avoid cold baths, which can have the opposite effect
- Keep lighting and stimulation low in the evening
- Offer extra feeds – hydration helps with temperature regulation
What Bedding Should I Use in Hot Weather?
Keep it minimal and breathable. Good choices include:
- Muslin or bamboo blankets – light, soft, breathable and versatile
- Summer car seat blanket – for naps on the go, with harness slots for safe travel
- Fitted sheet only – no duvets or heavy layers
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Signs Baby Might Be Too Hot at Night
- Clammy skin, sweating at the neck or hairline
- Flushed cheeks or restlessness
- Fast breathing or crying without another clear reason
Feel your baby’s neck or chest – not hands or feet – to check for overheating.
Final Thoughts
Sleep disruptions are part of parenting, but with the right layers and a few calm strategies, hot nights can be more manageable. Trust your instincts, keep things simple, and choose breathable bedding your baby can rest easy in.
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