These are the BEST baby swaddles. 3 sweetpea swaddles from Happiest Baby in size small, medium, and large. Smoke and pet free home. Our award-winning 100% organic cotton 5-Second Swaddle takes the guesswork out of swaddling with a secure wrap...every time. And because Sleepea was created by world-renowned pediatrician Dr. Harvey Karp, you can trust that every detail was designed with baby safety and parent sanity in mind! Small: 5-12 lb Medium: 12-18 lb Large: 18-26 lb Machine wash in cool or cold water with like colors. Never use hot water or chlorine bleach. Tumble dry on a low heat setting, making sure to dry the sack completely or air dry for best results!