Features:- Exclusive, secure, snap-free design- Promotes continuous sleep- Keeps baby warm all night long- Opens fully from the bottom for easy diaper changes- Snug-fitting neckline- Protected chin- Comfortable for feet 0-6 months: For babies weighing 4.5 to 7 kg / 10 to 16 lb and measuring 23" to 26"6-18 months: For babies weighing 7 to 11.8 kg / 16 to 26 lb and measuring 26" to 34"18-36 months: For babies weighing 11.8 to 18 kg / 26 to 40 lb and measuring 34" to 40" 1 TOGS: Room temperature between 18-22 Celsius / 64-72F Composition: 70% Bamboo viscose / 30% cotton