Robes, 3piece, pajama sets, onesies, nightgowns, etc., are some of the best-selling sleepwear you can buy for toddlers, tweens, and big girls. The graphic T-Shirts, 3D knit hoodies, and colorful cardigans are popular amongst women customers. While sturdy sweatshirts and gym wear for men have a separate fan base. Navy blue is a popular color that is always in trend. Narrow your selection and get what you have in mind from Striped and Solid and such patterns in Uniqlo Navy Blue Sleepwear for girls.