Super Soft and Safe - The fabric of the baby sleeping bag is made of higher quality 40 S combed cotton, this gentle fabric will not make your baby feel uncomfortable, it is softer and safer than ordinary cotton fabrics, with better moisture wicking and breathability One-Way Moisture Guide Technology: The inner layer of the sleeping bag will show a small whale pattern when absorbing sweat, which can quickly discharge sweat and keep the inner layer dry Safe Sleep for Baby: The baby sleeping bag features a deeper and narrower neckline to prevent suffocation hazards. A zipper protector shields your baby's face from scratching Intelligent Temperature Control Technology: The fillers use Microencapsulated PCM, which can achieve form conversion, heat absorption and heat dissipation to adjust the body surface temperature with the change of the ambient temperature, to help babies sleep well at the right temperature. Temperature sensing strip changes color as your baby's body temperature changes Smooth 2-Way Zipper: Unzips from the top, which makes it easy to place baby in sack. Unzips from the bottom, which makes it convenient for diaper changing. Our toddler sleeping sacks are designed to provide optimal comfort for babies and convinience for parents 1.0 tog baby sleep sack toddler sleep sack sleep sack wearable blanket baby sleeping bag sleep sacks sleep sack baby wearable blanket infant sleep sack summer sleep sack baby sleeping sack baby sleep sacks baby boy sleep sack wearable blanket toddler baby girl sleep sack toddler wearable blanket sleep sack toddler sleeping bag baby sleeping bag for baby