When it comes to baby sleep, one of the most common concerns parents have is how to dress their little one for bedtime. Is my baby too hot? Too cold? Do they need socks? Should they wear a onesie under their pajamas? And what about blankets—when are those safe to use?

Dressing your baby for sleep is more than just about comfort. It’s also about safety. Overheating has been linked to an increased risk of Sudden Infant Death Syndrome (SIDS), which is why it’s so important to make sure your baby is dressed appropriately for the temperature of their sleep environment. At the same time, you want to ensure your baby is at the ideal temperature and not too hot or too cold to sleep soundly through the night.

Since so many parents have questions about this topic, I’ve put together a comprehensive FAQ guide to help you navigate how to dress your baby for safe and comfortable sleep.