ergoPouch Cocoon Swaddle Sack 2.5 TOG - Dragonflies (Newborn to Infant) Gentle Sleep Sack

The ergoPouch Cocoon Swaddle Sack 2.5 TOG is a two-in-one sleep solution designed to grow with your baby. It starts as a snug arms-in swaddle for newborns and transitions to an arms-out sleep sack with shoulder snaps, supporting each stage of your baby’s sleep journey. When you need hands-up swaddling, you can pair it with the Butterfly Cardi (sold separately) for a customizable snugness that fits your routine.

2-in-1 design that adapts to your baby

This is more than a sleep sack. It provides a secure, womb-like feel for soothing and then gradually opens up to allow movement as your little one grows. The bell-shaped bottom gives hips and legs room to move while maintaining a snug, secure fit around the torso to help reduce startle reflex, potentially leading to longer, calmer stretches of sleep.

Temperature-smart options for year-round comfort

Choose from four TOG warmth ratings to suit nursery temperatures throughout the year. The range helps minimize the need for loose blankets, which can disrupt sleep and temperature balance.

• 0.2 TOG for warmer rooms around 71 °F / 22 °C
• 1.0 TOG for 67–75 °F / 20–24 °C
• 2.5 TOG for 59–69 °F / 16–21 °C
• 3.5 TOG for 53–65 °F / 13–19 °C

Soft, skin-friendly fabric you can trust

Made from 95% GOTS-certified organic cotton and 5% elastane, the fabric is breathable and gentle on sensitive skin. The dyeing uses non-toxic, water-based dyes that stay soft and vibrant after repeated washes. The product is approved by the Eczema Association of Australasia as a skin-friendly option for babies with irritations.

Practical details that matter at night

• Two-way zipper with a protective zip cover for quick diaper changes without skin irritation
• Shoulder snaps enable easy conversion between arms-in and arms-out configurations
• Bell-shaped bottom allows natural hip and leg movement while maintaining secure coverage

Durable, easy to care for

Designed to last through multiple babies, this sleep sack is machine washable and tumble-dry friendly. The fabric is dyed with non-toxic, water-based dyes, helping it stay safe, vibrant, and soft wash after wash.

Real-life use and potential benefits

Parents can experience calmer bedtimes with a reassuring, snug yet breathable design. The convertible style supports growing babies, while the practical features help with mid-night diaper changes and temperature management, offering a flexible option for varying sleep needs without promising guaranteed results.