Extra-Wide Sack: This sleeping bag has a wider bottom sack to comfortably accommodate a hip dysplasia brace, Pavlik Harness, Denis Browne Brace, Rhino brace, or Spica Cast, providing comfort and support for babies with hip dysplasia. Developmentally Appropriate: Designed for babies aged 12 months and older, allowing them more freedom as they undergo developmental changes while still providing the security needed for longer sleep. Natural Sleeping Position: Allows the baby to sleep in their natural sleeping position, promoting comfort and better sleep. Safe Rolling: Enables the baby to roll safely during sleep and push up with straight arms when on their tummy. Security and Comfort: Provides just enough security to help the baby sleep longer while allowing for gentle transitioning to free arms. All Seasons Use: Made from medium weight fabric suitable for all seasons, ensuring comfort and uninterrupted sleep throughout the year. Material: Constructed from soft, breathable organic cotton, ensuring warmth and comfort without causing overheating. Features: Fold-over cuffs that allow hands to come out for playtime or self-soothing, and close to keep hands warm inside. Signature two-way top and bottom opening zippers for easy nappy changes. Size: Suitable for babies aged 12 months and older, providing a proper fit for toddlers. Overall, the Baby Loves Sleep Hands In Out Extra-Wide Sack (Hip Dysplasia) offers a specialized and comfortable sleep solution for babies diagnosed with hip dysplasia, ensuring support, security, and comfort throughout their sleep.