ergoPouch Cocoon Swaddle Sack 1.0 TOG – Gentle Arm-In/Out Sleep Sack for Babies (Dragonflies)

Grow-with-Your-Baby Sleep Solution

The ergoPouch Cocoon Swaddle Sack 1.0 TOG is designed to evolve with your baby’s sleep journey, shifting from a snug arms-in swaddle for newborns to a comfortable arms-out sleep sack with shoulder snaps. For hands-up swaddling, you can pair it with our Butterfly Cardi (sold separately) to customize the look and feel of swaddling.

Four warmth options for year-round comfort

Choose the right TOG to match nursery temperatures: 0.2 TOG for warmer rooms around 71°F (22°C), 1.0 TOG for a broad range of typical nurseries (67–75°F / 20–24°C), 2.5 TOG for cooler nights (59–69°F / 16–21°C), and 3.5 TOG for chilly spaces (53–65°F / 13–19°C). The design eliminates the need for loose blankets, helping keep baby comfortable and the sleep environment simple.

Skin-friendly, baby-soft fabric

The sack is made from 95% GOTS-certified organic cotton and 5% elastane, delivering a breathable, gentle touch on sensitive skin. The dyes are water-based and non-toxic, maintaining softness and color wash after wash. The fabric’s eczema-friendly credentials come from independent associations, so you can feel confident in everyday wear.

Smart design for night-time practicality

A two-way zipper provides quick access for diaper changes, while a protective zip cover shields delicate skin from irritation. Shoulder snaps make transitions between swaddle modes smooth, so you can adapt as your baby grows.

• Two-way zipper for fast diaper changes
• Protective zip cover to guard delicate skin
• Shoulder snaps support easy transitions between modes

Hip-friendly fit that supports natural movement

The bell-shaped bottom offers room for hips and legs, while a secure, stretchy fit helps mimic the womb’s snug sense of security. This thoughtful design can contribute to calmer starts and easier settling at bedtime.

Durable, easy to care for

Built to last through multiple babies, the Cocoon Swaddle Sack is machine washable and designed for repeated use. It’s dyed with non-toxic, water-based colors that resist fading when you wash often, keeping the print lively and soft.

Real-world use, practical benefits

• Newborns stay cozy during feeds and changes without heavy blankets.
• Switching from arms-in to arms-out supports growth through early months.
• Hands-up swaddling remains possible with the Butterfly Cardi (sold separately).

What’s in the box and fit notes

Available in the Dragonflies print for a gentle bedtime aesthetic and easy pairing with nursery decor. Fits newborns and transitions through early months thanks to the adaptable design and durable fabric.

Why choose ergoPouch

With a focus on comfort, skin-friendliness, and practical features, this sleep solution aims to support peaceful nights for baby and simpler routines for parents — without promising guaranteed outcomes.