How to dress baby in winter: All your options for keeping them warm Today's Parent 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 Leah Cristina: 6 Month Update Baby winter clothes: How to dress your baby in cold weather I had a lot of requests to share how I dress my babe for winter. This is an example of how I dressed him for a low 30s high 20s hike., ., My typical layering for a cold day is:, 1. Onesie and wool