HIGH QUALITY: GOTS Certified 100% Organic Cotton. This is a 1Tog summer model baby sleeping bag for room temperatures above 70 F. 100% knitted cotton outer shell, very soft 100% jersey cotton inner lining and high quality YKK zippers and snaps. Synthetic fibers like fleece and polyester are cheap but absorb moisture in very small amounts and hence are the least desirable fabrics touching your babies skin.

SAFE SLEEP: Baby sleeping bags should be sleeveless to aid the heat loss and air circulation. Babies sleeping under traditional blankets rarely sleep with their arms inside. Sleeveless design reduces the risk of overheating. Your baby is covered and warm all night. No more kicked off covers means your baby sleeps more comfortably. Adjustable armholes. Available in three sizes: 3-11, 10-24, and 24-3T months.

SIZING: Please measure your little one from head to toe and match the length of your baby with the corresponding size next to it on our sizing chart. Please do NOT buy one size up! The bag will not fit until your little one reaches the right age. Small size bags will start to fit once your baby reaches about 3 months old. It is generally recommended to swaddle your infant for the first 2 to 3 months or when they start to roll. Choose a sleeping bag that's suitable for the season.

SPACIOUS AND PRACTICAL: Generous bell shape sack design allows ample room for kicking, but cannot be kicked off so baby stays warm all night. If babies are comfortable, they tend to sleep longer. So enjoy that extra rest! Side zipper with open and fold-flat design for easy diaper changes. Side zipper avoids that your baby is chewing on it. Machine washable and can be tumble dried on low heat.

SUMMER WEIGHT: This is a lighter weight summer model with two layers of cotton. The recommended nursery temperature should be between 70F to 78F. A Baby Sleeping Bag surrounds the baby, providing insulation from both below and above, and also a warm pocket of air around the baby.