Halo created the first Sleepsack over 20 years ago with both safety and comfort in mind. The #1 choice of 1,700 hospitals nationwide, our original wearable blanket with sleeveless design nestles baby like a soft blanket without the risk of sleep-related dangers. Signature Back is Best embroidery is a gentle reminder to place baby in the recommended sleep position. Features an inverted zipper for easy diaper changes and a roomy sack design thats recognized by the International Hip Dysplasia Institute as promoting healthy hip development. Product Care: Turn inside out and close zipper before laundering. Machine wash warm with like colors on gentle cycle. Tumble dry low. Do not bleach, iron or dry clean. TOG Rating: 1.0 TOG Room Temp 72-75 degrees