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 How to dress your baby for winter Take the guesswork out of what to dress your baby in for the cold with this simple guide: Base layer first (think breathable 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