Protecting Babies from Winter's Chill: Essential Care Tips Keeping your baby warm in winter is all about smart layering, not over layering , Remember the golden rule: babies usually need one extra layer than adults., Soft breathable base, Warm middle How to dress baby for winter sleeping ergopouch US How to Dress an Infant in Winter Reima USA What do you dress your babies in during the day in winter? Is there anything you can put over a onesie to keep them warm inside?