How to Dress a Newborn in Winter: A Comprehensive Guide for New Parent Woolino This January weather is seriously chilly, but that doesn't mean those nap walks and park adventures need to stop! Here's your baby winter dressing guide by temperature save this How to Dress A Baby in Winter Sleep TikTok How to Dress Baby for Sleep: The Sleep Sack Layering Guide How to dress baby and toddler under sleep sack in winter and summer. Printable chart and guide for what to wear under sleep sack.