Keep baby calm and comfortable as they drift off to sleep in this slim yet stretchy, organic-cotton, wearable blanket ideal for year-round use. A convenient alternative to swaddling, this lightweight, stretchy sack soothes your little one while its generous shape and sleeveless design allow freedom of movement. The 1.0 TOG rating makes it ideal for using in moderate weather year round. Includes room thermometer and what-to-wear guide to help dress baby appropriately for sleep Two-way front-zip closure Arms-out sleeping Bell-shaped bottom approved by the International Hip Dysplasia Institute for being hip healthy and promoting proper development in the hips and shoulder joints 1.0 TOG Suited for room temperatures between 70-75°F 55% organic cotton, 40% viscose, 5% elastane Machine wash, tumble dry Imported Organic Content Standard (OCS)-certified. OCS uses third-party verification to confirm the amount of organically grown material in a final product