How To Dress A Baby In Winter What Every Mom Wants To Know How to Dress Newborn for Sleep in Winter [Safe & Cozy Tips] How to Dress Newborn Baby for Winter Sleep Pehr A great alternative to putting blankets on your newborns is sleep sacks and warmer onesies." Make sure your baby has room to breath while they sleep during this winter season! Get more # As the nights get cooler, here's how to keep your baby snug, safe, and just the right kind of cozy this Autumn. 68 72F: Long sleeve onesie + 1.0 1.5 TOG