whichtog.comsleep layer recommendations

What TOG for 21°C?

Baby sleeping bag and what to wear in a 21°C room

Recommended at 21°CMild

At 21°C, use a 1.5 TOG bag, worn over a long-sleeved bodysuit.

1.5TOG

Wear, under the bag:

Long-sleeved bodysuit
Band 20–22°C
Open the calculator at 21°C

Pick the bags you own and see the overnight forecast.

What TOG sleeping bag does a baby need at 21°C?

At 21°C, use a 1.5 TOG bag, worn over a long-sleeved bodysuit.

What should a baby wear to sleep at 21°C?

Dress them in a long-sleeved bodysuit, under a 1.5 TOG sleeping bag.

Why this TOG at 21°C?

John Lewis and aden + anais: 1.5 TOG at 20–22°C. M&S recommends 1.0 TOG for 20–24°C. Love to Dream "Mild" band.

Safe sleep checks

  • Always place your child on their back to sleep.
  • Check for overheating by feeling the chest or back of neck. Remove a layer if hot or sweaty.
  • Do not put a hat on your baby indoors or for sleep — babies cool down through their head, and a hat can cause overheating.
  • Do not use a sleeping bag with a cot duvet or loose blanket.
  • These are general guides only — every child is different.
  • Ideal room temperature for sleep is 16–20°C.
  • Stop using a sleeping bag if damaged or if your child can climb out of the cot.

Other room temperatures

See the full TOG chart by room temperature