Layer up the right way

Dressing your baby in layers is the safest and most effective way to keep them warm. Start with a thin cotton onesie as a base layer, add a long-sleeve bodysuit or one-piece pajama, and finish with a lightweight sweater or sleep sack if needed. Avoid thick, bulky clothing that can overheat your baby or restrict movement. A good rule: dress your baby in one more layer than you are comfortable in. Always remove hats and extra layers once indoors to prevent overheating.

Safe sleep practices for winter

For sleep, skip loose blankets, duvets, and pillows. Instead, use a wearable blanket (sleep sack) that is the right size for your baby. Make sure the sleep sack has no hood and fits snugly around the chest and arms. Keep the crib clear of bumpers, stuffed animals, and extra bedding. The ideal room temperature is between 68-72°F (20-22°C). If you feel it’s too cold, add a layer of clothing rather than a blanket. Tuck your baby in with feet to the foot of the crib to avoid wiggling under covers.

Managing outdoor time

When going outside, dress your baby in a warm, breathable snowsuit or bunting. On very cold days (below 15°F or -9°C), keep outdoor trips short. Use a hat, mittens, and booties, but make sure your baby’s face stays uncovered. In the car seat, avoid bulky jackets or snowsuits as they can compress in a crash, leaving straps too loose. Instead, dress your baby in thin layers and cover with a blanket on top of the harness after buckling. Remove the blanket and any extra layers once you reach your destination.

Signs of overheating and cold

Check your baby’s temperature by feeling their neck or back – not hands or feet, which are naturally cooler. If the skin feels sweaty or hot, remove a layer. If it feels cool, add a layer. Other signs of overheating: flushed cheeks, rapid breathing, or fussiness. Signs of being too cold: shivering, pale skin, or lethargy. At night, if your baby is fussy or waking more than usual, they might be too hot or cold. Adjust layers accordingly and monitor their neck temperature.

What to do at night when the room is cold

If your home is chilly, try a thin onesie under fleece pajamas. A 1.0 TOG sleep sack is good for most rooms; use a 2.5 TOG for colder rooms (under 68°F/20°C). Never use space heaters in your baby’s room – they pose fire and burn risks. Instead, keep the door closed and adjust the thermostat. If you must use a room heater, place it far from the crib, but always follow safety guidelines. A baby monitor can help you keep an eye on temperature without entering the room.

Additional winter tips

  • Use a humidifier to prevent dry air from causing discomfort, but keep it out of reach.
  • Avoid crib bumpers even if marketed as breathable – they are not recommended.
  • Never put a blanket over the crib or stroller to block wind – it can trap carbon dioxide. Use a wind cover designed for strollers.
  • Always check your baby’s temperature before adding or removing layers, especially after a feeding or bath.

Remember: if you’re unsure about your baby’s health or safety, consult your pediatrician.

Key Takeaway

Dress your baby in layers, use a sleep sack instead of blankets, and keep the room at 68-72°F for safe winter warmth.