Kyte Baby Bamboo Size Small 2.5 TOG Sleep Sack EUC Horses The one that started it all: Our most-loved, best-selling sleep bag. A wearable blanket that helps baby fall asleep (and stay asleep), so you're not up all night. Designed to be safe sleep, diaper change friendly, temperature-regulating, and so soft you'll have to touch it to believe it. • Exterior: 97% Rayon made from Bamboo, 3% Spandex • Filling: 100% Polyester • Highly breathable • J-shaped double zipper • Use as a wearable blanket over pajamas for safer, cozier sleep