Layer & Swaddle Bundle: Build a Newborn Sleep System
By ergoPouch: Sleeping Bags, Swaddles & Sleepwear for Babies ... | Published: 2026-10-27
Category: How-to Guides
Learn how to use the ergoPouch Layer & Swaddle Bundle to create a safe, warm sleep system for your newborn. Step-by-step guide with common mistakes.
Quick answer
Use the Layer & Swaddle Bundle as a two-piece sleep system: start with the Long Sleeve Layer 1.0 TOG as a base, then add the Cocoon Swaddle Bag 2.5 TOG over it for warmth and security.
Why a two-piece sleep system works for newborns
Newborns need help regulating their temperature and often startle awake. The Layer & Swaddle Bundle combines a thin base layer (1.0 TOG) with a thicker swaddle bag (2.5 TOG), giving you the flexibility to adjust warmth without buying separate pieces. The 2.5 TOG cocoon provides enough insulation for cooler rooms (16-20°C / 61-68°F), while the 1.0 TOG layer can be used alone in warmer conditions.
When to use the bundle vs. individual pieces
Use the full bundle for winter nights or air-conditioned rooms. For warmer evenings or daytime naps, you can use just the Long Sleeve Layer 1.0 TOG. The Cocoon Swaddle Bag 2.5 TOG is also sold separately, so you can mix and match as your baby grows. The bundle saves about 20% compared to buying both items separately.
How to build the sleep system step by step
- Start with the Long Sleeve Layer 1.0 TOG: Dress your baby in the Long Sleeve Layer as a base. This thin cotton or cotton-blend layer fits snugly and covers the arms and torso. It should be the only clothing under the swaddle bag. Common mistake: adding a separate onesie or footed pajama under the layer. This can overheat your baby. The layer is designed to be the only underlayer.
- Place baby in the Cocoon Swaddle Bag 2.5 TOG: Lay the Cocoon Swaddle Bag flat, place your baby inside, and zip up. The bag has a fitted cocoon shape that prevents the startle reflex while allowing hip-healthy leg movement. Ensure the bag is not too loose or too tight around the chest. Check that the swaddle bag is the correct size for your baby's weight. A bag that is too large can ride up over the face; one that is too small restricts movement.
- Check room temperature and adjust layers: Use a room thermometer to keep the nursery at 16-20°C (61-68°F). If the room is warmer, use only the Long Sleeve Layer. If cooler, the full bundle is appropriate. Feel your baby's chest or back to check for sweating or coolness. Never add extra blankets or quilts inside the swaddle bag. The 2.5 TOG bag provides enough insulation for the recommended temperature range.
- Transition out of the swaddle when baby shows signs of rolling: Once your baby starts trying to roll (usually around 8-12 weeks), stop using the Cocoon Swaddle Bag and switch to a sleep sack or wearable blanket. The Long Sleeve Layer can still be used as a base under a sleep sack. Watch for early rolling attempts. Continuing to swaddle a rolling baby increases the risk of suffocation.
Product facts
- Layer & Swaddle Bundle: Save 20% OFF RRP with the Layer & Cocoon Swaddle Pack. Featuring: 1 x Long Sleeve Layer 1.0 TOG (RRP $39.95) and 1 x Cocoon Swaddle Bag 2.5 TOG (RRP $64.95). Buying the bundle costs less than two separate items and ensures you have matching pieces designed to work together for safe layering.

Layer & Swaddle Bundle
