How To Dress Your Baby for Sleep and the Weather Carilion Clinic Winter hats can help keep babies warm in the winter when they are awake. But remove any winter hats when your baby is asleep for their safety. Find more safe sleep resources Winter is here! We know it can be confusing to know what sleepwear your baby needs as the temperature starts to drop. With this simple guide you can see what sleepwear is What to wear for a baby in warm weather? How to dress baby for winter sleeping ergoPouch AU When winter rolls in, it's natural to wonder if your baby is warm enough at bedtime. To make those colder nights feel a little simpler, we've put together a handy sleepwear guide