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How to Dress Your Baby for Sleep: Pediatrician-Approved Guide by Room Temperature

How to Dress Your Baby for Sleep: Pediatrician-Approved Guide by Room Temperature

As a parent, you've likely wondered: Is my baby too cold or too hot at night? Proper dressing is essential for restful sleep and health.

Our children's pediatrician shared this reliable guide, which has proven invaluable for countless families, including ours.

It's straightforward and reassuring. Here's how to dress your baby at night for optimal comfort—tailored to room temperature:

How to Dress Your Baby for Sleep: Pediatrician-Approved Guide by Room Temperature

1. Below 16°C

Bundle up warmly in cooler rooms. Opt for socks, a long-sleeved bodysuit, pajamas, and a thick sleeping bag (2-2.5 TOG, or up to 3 TOG).

Add a hat (without ties to prevent suffocation risk) to keep extremities warm.

2. 17-20°C

This is the ideal range for a baby's room. Use a warm sleeping bag (2-2.5 TOG) with a toweling onesie.

Layer a long- or short-sleeved bodysuit if needed, but prioritize warm materials like fleece over multiple layers.

Look for sleeping bags with removable sleeves for easy adjustments.

3. 21-23°C

Lighten up for comfort. Choose a lighter sleeping bag (1 TOG) paired with a cotton bodysuit (long- or short-sleeved).

Cotton pajamas work too—breathable and suitable for warmer evenings.

4. 24-26°C

Adapt to the warmth: Pair a light sleeping bag (1 TOG) with a short-sleeved bodysuit.

Alternatively, skip the bag and use a short-sleeved bodysuit with lightweight pajamas.

5. 26°C and Above

High heat, like during heatwaves, requires minimal clothing. Keep the room cool with ventilation tips.

Avoid letting baby sleep in just a diaper overnight—temperature drops can chill them, and babies feel secure when swaddled.

Opt for a very light sleeping bag (0.5 TOG) or a thin short-sleeved bodysuit in breathable fabrics like cotton, bamboo, or linen.

Quick Reference Chart

How to Dress Your Baby for Sleep: Pediatrician-Approved Guide by Room Temperature

Now you're equipped to keep your baby perfectly comfortable—neither too hot nor too cold. This works for newborns through toddlers (1-16 months+).

The ideal room temperature? Around 18°C—often cooler than expected for safety and sleep quality.

Understanding TOG Ratings

TOG measures a sleeping bag's thermal resistance—the higher the number, the warmer it is. It's also used for footmuffs, helping you select the right warmth.

Key Safety Precautions

To prevent choking hazards, skip loose blankets, quilts, or sheets in the crib—especially for infants.

Your Experience?

Has this guide helped you dress your baby just right? Share in the comments—we'd love to hear!