Best organic cotton kids' pajamas brands
Updated November 7, 2026
Kids' pajamas get washed constantly, so they need to be soft, sturdy and free of harsh finishes.
Look for GOTS or OEKO-TEX certification and snug-fit cotton. In the US, children's sleepwear must be flame resistant or snug fitting, and snug cotton avoids chemical flame retardants.
The 20 brands below sell kids' pajamas and are listed in The Plain Thread directory. The green links go straight to their matching shop pages. Some of these brands also sell blends, so check the fiber content on each product.
Organic cotton clothing for babies and kids, from newborn basics and sleepers to toddler tops and accessories.
Fair Trade certified organic cotton kids' clothing.
Merino wool and organic cotton clothing for kids ages 5 to 14.
Organic cotton socks, underwear, and kids clothing at accessible prices.
USA-made flannel shirts and sleepwear in 100% cotton flannel.
Danish kidswear brand making everyday clothing for babies and children from organic cotton and merino wool in Scandinavian style.
Organic cotton clothing for babies, kids, and women, certified to the Global Organic Textile Standard.
Organic Fairtrade cotton clothing for babies and children, from everyday basics to outerwear.
Affordable luxury basics in cashmere, organic cotton, silk, alpaca, and linen for men and women.
Colorful organic cotton babygrows, leggings, and everyday essentials for babies and children up to age 8.
Alpaca and vicuña knitwear for men and women across a range of price points.
Austrian sustainable kidswear in organic linen and cotton.
Premium linen and cotton bedding and bath products for the home.
Size-inclusive organic cotton underwear and basics for all genders.
German maker of organic merino wool, silk, and cotton base layers and bodywear for babies, children, and adults.
100% organic cotton, spandex-free basics and underwear designed for sensitive skin.
Women's premium basics in Pima cotton, alpaca, cashmere, and silk on a fewer-better-things philosophy.
Organic cotton children's clothing from Sweden, designed for babies and kids with bright colors and playful patterns.
Los Angeles-made organic cotton and TENCEL basics for men and women.
New Zealand merino wool outdoor base layers and apparel for men, women, and kids.
Common questions
Why are kids' cotton pajamas so tight?
US safety rules let children's sleepwear skip flame-retardant treatment only if it fits snugly. Close-fitting cotton is the alternative to treated synthetic pajamas.
Should I size up?
Check each brand's size chart. A snug fit is part of the safety rule, so most brands advise against sizing up much.
How do I keep kids' pajamas from shrinking?
Wash cold and tumble on low. Snug cotton pajamas often shrink a little at first.