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Baby OOTD

Bedtime guide · 17°C

What should a baby wear to sleep at 17°C?

In a 17°C room, long sleeves and a 2.5 TOG sleep sack.

2.5 TOG

Two layers and a warm sack

  • Short-sleeve bodysuit underneath
  • Long-sleeve footed sleepsuit
  • 2.5 TOG sleep sack

Why this outfit

On the standard TOG chart, a room of 16°C to 18°C calls for this. That's inside the 16–20°C the NHS recommends for a baby's room.

Dress for the coldest the room will get before morning, not the temperature at bedtime. Rooms often drop a degree or two overnight, so check a room thermometer and plan for 4 AM.

Safe sleep, every night

  • On their back, in a sleep sack that fits at the neck and arms.
  • No hat, no blankets, pillows or bumpers, nothing loose in the crib.
  • Too warm is the bigger risk: when unsure, go one layer lighter.

Check them, not their hands

Feel their chest or the back of their neck. Warm is right. Hot or sweaty means take a layer off. Cool hands and feet are normal.

Where our numbers come from

  • 16–20°C is the bedroom temperature the NHS and The Lullaby Trust recommend.
  • Safe sleep rules (on their back, a fitted sleep sack, no hat, nothing loose, don't overheat) follow the American Academy of Pediatrics, the NHS and The Lullaby Trust.
  • TOG ratings follow the standard chart printed by sleep-sack makers.

A guide, not medical advice. Check their chest or the back of their neck: if it's hot or sweaty, take a layer off.

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