“The original baby deedee sleep nest! This baby deedee sleep sack is made from 100% cotton for maximum breathability.” “The Sleep Nest Original is our winter-weight bag, our warmest bag, intended to be worn over regular sleepwear. The recommended room temperature is 64-72°F. The sleeve length and thickness of your baby’s sleepwear should be adjusted accordingly.” The Perfect Sleep Companion Our original sleep nest is designed to replace loose blankets in the crib and keep your baby warm throughout the night. Clever and Convenient Shoulder Snaps Shoulder snaps make it easy to place your baby in the sleep sack, even when asleep. No shoulder straps mean no more struggling to get baby’s hands through an armhole! This patented design is exclusive to Baby DeeDee wearable sleep nest brand baby sleep sacks. A Cocoon for Comfort A unique cocoon shape provides a cozy environment. Babies sleep better when they stay covered throughout the night. Parents sleep better knowing their infant is comfortable and secure. Quilted Duvet Material The baby deedee sleep nest is quilted for an extra layer of warmth. Rated TOG 2.5. “With no loose blankets to kick off, baby deedee's warm sleep nest helps ensure you and your baby get a restful night's sleep!” Please note that this item has frayed edges- See in close up pics. Otherwise, snap buttons & zipper work well, plenty of life left!