The Cotton Footed Sleepers are designed with comfort, safety, and style in mind—perfect for babies from newborn through 12–18 months. Made from OEKO-TEX® certified 93% cotton and 7% spandex, this breathable sleeper offers a gentle stretch for all-day and all-night comfort. With a slim-fit design, it hugs baby just right—ideal for newborn snuggles and perfect as a layering piece as your little one grows. The built-in ankle elastics help keep tiny feet in place, while foot grips on sizes 3–6M and up provide extra stability for early movers. Key features include: OEKO-TEX® certified cotton blend for peace of mind (93% Cotton/7% Spandex) Foldover mittens on Newborn and 0–3M sizes to protect against scratches Foot grips on 3–6M+ sizes for extra traction Tag-free neckline for added comfort Breathable fabric to keep baby cozy, not sweaty Whether you're stocking up for sleep, play, or layering, this versatile footed sleeper is a must-have for every baby wardrobe. Fit Guide For Pip + Phee ApparelIf in doubt, size up. NB — 6 to 10 lbs (up to 22") 0–3M — 8 to 12 lbs (up to 23.5") 3–6M — 12 to 15 lbs (up to 25") 6–9M — 15 to 18 lbs (up to 27") 9–12M — 18 to 21 lbs (up to 29") 12–18M — 21 to 24 lbs (up to 31") Weights are guidelines only. Height is a more accurate fit assessment based on product lengths. Pip + Phee recommends washing their products inside out with the zipper zipped up. A gentle detergent, delicate cycle (quick wash, if possible), cold water & with like fabrics is the most ideal. If you choose to put your products in the dryer, please do so on low heat. A small amount of shrinkage can be expected.