Newborn Swaddle Sack & Baby Sleep Sack in One: Converts from a snug arms-in swaddle for newborns to an arms-out sleep sack with shoulder snaps, supporting every stage of your baby’s sleep journey. Use with our Butterfly Cardi (sold separately) for hands-up swaddling. Choose the Right TOG for Safe Sleep: Available in 4 warmth ratings to suit nursery temperatures year-round. 0.2 TOG (71 °F +/ 22 °C +), 1.0 TOG (67–75 °F / 20–24 °C), 2.5 TOG (59–69 °F / 16–21°C), and 3.5 TOG (53–65 °F / 13–19 °C). No need for loose blankets, reducing sleep risks and helping baby stay at the perfect temperature. Organic Cotton Baby Sleep Sack: Made with 95% GOTS-certified organic cotton and 5% elastane, our swaddle sack is soft, breathable, and gentle on sensitive skin. Approved by the Eczema Association of Australasia as a skin-friendly choice for babies with eczema or irritations. Easy Zipper Access for Diaper Changes: Two-way zipper makes middle-of-the-night diaper changes quick and fuss-free. A protective zip cover keeps baby’s delicate skin safe from irritation or scratches. Promotes Healthy Hip & Leg Development: Bell-shaped bottom allows room for hips and legs to move freely while the stretchy, firm fit helps reduce startle reflex and mimics the secure feeling of the womb. Encourages longer, more restful sleep. Durable, Non-Toxic & Easy to Wash: Machine washable, tumble dry low, and made to last through multiple babies. Dyed with non-toxic, water-based dyes that stay safe, vibrant, and soft even after repeated washes.