ergoPouch Cocoon Swaddle Sack 1.0 TOG – Baby Sleep Sack for Arms-In/Out, Dragonflies

Meet the ergoPouch Cocoon Swaddle Sack 1.0 TOG Dragonflies

The Cocoon Swaddle Sack is designed to grow with your baby, starting as a snug arms-in swaddle for newborns and evolving into a hands-out sleep sack as they gain control. Shoulder snaps enable easy transitions, and when paired with our Butterfly Cardi (sold separately) you can experiment with hands-up swaddling for cozy versatility.

Tailored warmth for year-round comfort

Nursery temperatures shift, and this sack adapts with four TOG options to help you find the right warmth without loose blankets. No matter the season, you can aim for a comfortable microclimate for your little one:

• 0.2 TOG for warmer rooms (71 °F ± 22 °C)
• 1.0 TOG for mid-range conditions (67–75 °F / 20–24 °C)
• 2.5 TOG for cooler spaces (59–69 °F / 16–21 °C)
• 3.5 TOG for chilly nights (53–65 °F / 13–19 °C)

Soft, skin-friendly materials

Crafted from 95% GOTS-certified organic cotton with 5% elastane, the sack feels soft against delicate skin and remains breathable through wear. Non-toxic, water-based dyes help keep color and texture safe and vibrant wash after wash. The material choice aligns with skin-friendly guidelines recognized by relevant associations.

Smart details for night-time care

• Two-way zipper for quick diaper changes with a protective zip cover to avoid skin irritation
• Bell-shaped bottom provides room for hips and legs to move freely

A fit that grows with your baby

The plush yet firm fit helps minimize startle-like movements while offering a secure, womb-like feel. This design aims to support longer, more restful sleep and easier daytime transitions as your baby grows.

Durable, easy care

Designed for busy parents, this sleep sack is machine washable and can be tumble dried on low. It’s dyed with non-toxic dyes for safety and lasting softness throughout multiple babies’ use.