Keep baby safe & warm all night with a Sleep Bag (also known as a sleep sack or wearable blanket). Designed specifically for bedtime & naptime, this cozy solution can’t be kicked off — which means a more restful sleep for baby & parents! Made with Tencel Lyocell knit jersey & filled with Dupont Sorona filling: an excellent thermal regulating property to ensure baby is always comfortable at 2.5 TOG.