Designed for Rolling Babies: Suitable for babies 6 months and older who have mastered rolling, this sleep sack allows them to roll safely during sleep, promoting their natural sleeping position and giving them the freedom they need for their developmental changes. Clever Fold-Over Cuffs: The sleep sack features fold-over cuffs that can be opened to allow your baby to self-soothe before sleep or folded closed to provide the security they need to sleep throughout the night. Breathable Summer Weight Fabric: Made from breathable soft mesh-like organic cotton fabric, this summer weight sleep sack promotes air circulation around your baby, keeping their body temperature cool and constant during warm summer nights. Easy Nappy Changes: The sleep sack includes signature top and bottom opening zippers for easy nappy changes, allowing you to change your baby's diaper without fully removing the sleep sack. Wide Sack Accommodates Hip Dysplasia Brace: The wide sack design accommodates a hip dysplasia brace, ensuring comfort and safety for babies who require it. Sized for 6 Months up to 12+ Months: Available in two sizes from approximately 6 months up to 12 months+, ensuring a comfortable fit as your baby grows. Gentle Transitioning to Free Arms: The sleep sack provides just enough security to help your baby transition to sleeping with free arms, allowing for gentle and gradual adjustment. Multiple Color Options: Available in gorgeous sorbet colors, allowing you to choose the perfect style for your baby's nursery. Overall, the Baby Loves Sleep Hands In Out 'Cool' sleep sack offers a comfortable and secure sleep solution for your baby during warm summer nights, helping them sleep well and stay cozy throughout the night.