Safety Sleep - Made from 100% polyester, super soft, smooth and lightweight, sleep sack creating warm and cozy embrace for baby. Yoofoss long sleeve sleep sack has been certified to meet Consumer Product Safety Commission (CPSC), dedicating to ensure newborn's safety and coziness.

Healthy Development - 8Mm long plush can lull baby fall asleep quickly, transform fleece sleep sack into an invaluable ally for moms and soothing your precious one. Moreover, our baby sleeping bag provides enough room for kicking freely, keeping baby comfortable all night and healthy hip development.

Hidden 2-way Zipper - Toddler sleep sack with zipper protection avoids scratching baby's delicate skin. Double zippers allow for effortless dressing and making nighttime changes easier. High-grade zippers of sleep sacks for baby glide smoothly without getting stuck, easily open and close.

1.5 Tog Sleep Sack with Sleeves: Long sleeve design offers freely arm movement and warmth. 1.5 Tog sleep sack with sleeves is suiable for moderate temperatures from 69 to 73°F as an ideal option for autumn, early winter and spring or taking a nap in cool summer A/C room during the summer.

Warm Tips - Fleece baby Wearable Blanket come with 2 pack and machine washable. There are 4 sizes available for your choices: S(0-6 Months/10-18lb), M (6-12 Months/16-24lb), L(12-18 Months/22-18lb), XL(18-24 Months/26-34lbs). Please refer to our size chart carefully before you order long sleeve sleep sack.