Naps, travel, and car seat safety in hot weather

Daytime naps often present the biggest risk during heat waves because babies may fall asleep in carriers or car seats while parents are out. Never add extra padding under the baby in a car seat or carrier to try to keep them cool. Overdressing or wrapping a baby in blankets while in a car seat can increase the risk of overheating and can also interfere with the harness fit.

Monitoring your baby and when to get help

Watch for signs that your baby may be overheating. These include sweating, damp hair, flushed face, rapid breathing, and unusual irritability or lethargy. Heat rash or clusters of small red bumps can appear in skin folds. If your baby seems uncomfortable but can be cooled by removing a layer, giving a lukewarm towel bath, or moving to a cooler room, monitor closely and adjust the sleep environment.

A gentle guide to sleep environment support: Baby Sleep in Summer Heat: Keeping Your Little One Cool & Safe

Baby Sleep in Summer Heat: Keeping Your Little One Cool & Safe Summer brings long, warm days and new challenges for helping babies sleep comfortably and safely. This guide offers practical, evidence-based tips to keep your baby cool at night and during daytime naps while following safe sleep practices. Why summer heat matters for baby sleep Babies regulate body temperature differently than older children and adults. Their bodies are still developing the ability to sweat efficiently and to shift blood flow to cool down, so they can overheat more quickly. Overheating can make sleep restless, increase fussiness, and in rare cases worsen breathing or cause heat-related illness. Hot, sticky nights can also lead parents to layer bedding or use fans incorrectly out of concern. Balancing a comfortable temperature with safe sleep practices is the key. Small adjustments to clothing, bedding, and the sleep space usually make the biggest difference without compromising safety. Ideal room temperature and how to check it There is no single perfect temperature for every baby, since comfort varies with humidity, clothing, and activity. Many pediatric experts recommend keeping the nursery in a comfortable range for a lightly dressed adult, often cited as about 68 to 72 degrees F (20 to 22 degrees C). If your home runs warmer in summer, aim for the coolest, safest setting you can maintain. Use a room thermometer to monitor the nursery, and check it at different times of day. In very hot weather, focus on keeping air moving and lowering humidity where possible. A simple and reliable way to gauge whether your baby is comfortable is to feel their neck or chest. Hands and feet are often cool even when the baby is warm, so neck or back checks are more informative. If the neck feels sweaty or very warm, remove a layer or cool the room if needed. Clothing and bedding choices for hot nights Lightweight, breathable fabrics are your best friend in summer. Choose cotton or moisture-wicking materials that allow air flow. For infants, a single layer such as a thin onesie or a lightweight cotton sleepsuit is usually enough, paired with a lightweight sleep sack if you prefer a wearable blanket. Avoid heavy blankets, quilts, or loose bedding in the crib at any age. If you use a sleep sack or wearable blanket, select one designed for warm weather. Brands often list a tog rating or temperature guidance. For warm rooms, choose a very light option or a mesh version. Remember that layers add up: a bodysuit plus a sleep sack can be as warming as a blanket, so adjust accordingly. Cooling strategies: air conditioning, fans, and safe circulation Air conditioning can be a safe and effective way to keep a baby comfortable when outdoor heat is extreme. Point the airflow so it does not blow directly on the baby, and avoid setting temperatures so low that the baby becomes cold. Keeping the nursery at a steady, moderate temperature is better than frequent swings from hot to very cold. Using a f