This is such an awesome sleep sack that kept our little one warm and cozy. Loved it, but ready to rotate for something new. Baby Deedee Sleep Nest Sleeping Sack Warm Baby Sleeping Bag * Shell 100% Cotton, Filling 100% Polyester * Imported * SAFE AND COZY SLEEP: breathable fabric & comforting cocoon shape mean a restful night's sleep for all * UNIQUE FEATURE: exclusive shoulder straps make placing a sleeping or standing baby in the sleep nest a cinch, high-quality reverse zipper. Filling is 100 percent polyester * HIGH QUALITY: 100% cotton exterior, soft quilted interior * WINTER WEIGHT: quilted duvet material, extra layer of warmth, TOG 2.5, Recommended room temp 64-74 DegreeF * Machine wash cold inside out with like colors. Don't bleach, tumble dry low, don't dry clean Questions? Leave a comment below!