The Mimou Babywear Blog

Welcome to the Mimou Blog! Find helpful tips, practical advice, and inspiration for life with your little one—from babywear and everyday essentials to the little things that make parenting special.

Tiny newborn in a slightly roomy Mimou pink elephant romper — newborn vs 0-3 months baby sizes guide

The Mimou Babywear Blog

Newborn vs 0–3 Months: Understanding Baby Clothing Sizes

“Newborn” and “0–3 months” sound identical but are two different clothing sizes — and confusing them is a top reason outfits don’t fit. Here’s what each means by weight and length, which to buy and how many, and how to tell which one fits your baby.