Envelope Swaddling Sleeping Bag for Newborns & Premature Babies

Cosy fleece-lined swaddle for 0+ months – ideal for car seats, carrycots, pushchairs, cribs, and more.

The Envelope Swaddling Sleeping Bag is a soft, supportive cocoon designed to keep newborns and premature babies warm and secure in their earliest days. Perfect for the first few months, its gentle shape cradles your baby while allowing natural leg movement for healthy development. Lightweight and versatile, this fleece-lined swaddle fits seamlessly into daily routines, whether you’re at home or on the go.

Specially crafted for comfort and adaptability, the Envelope Swaddling Sleeping Bag wraps your baby in warmth without restricting movement. The clever footmuff-style design gently hugs your baby’s body, while leaving the legs free to move naturally – supporting comfort, circulation, and healthy hip positioning.

Made from a breathable blend of 50% cotton and 50% elastane, the outer fabric is light and soft, while the fleece-lined interior provides essential warmth and insulation. This swaddle adapts to a wide variety of baby gear including Group 0/0+ car seats, carrycots, cribs, and pushchairs – making it a true all-rounder for newborn care.

Featuring secure Velcro fastening on the flaps, the Envelope swaddling bag ensures your little one stays snug without disturbing their rest. It’s also compatible with the Nest baby carrier included in the Groowy car seat system.

What’s Included

• Envelope Swaddling Sleeping Bag

Product Highlights

• Universal Fit: Suitable for car seats, carrycots, pushchairs, baby carriers, cribs, and hammocks.
• Soft and Warm: Inner fleece lining provides essential insulation.
• Freedom to Move: Unique shape allows leg movement while keeping baby securely swaddled.
• Secure Fastening: Velcro flap closure keeps your baby snug without shifting.
• Newborn-Ready: Ideal for premature babies and from birth onwards.

Features & Benefits

• Universal Compatibility: Designed to fit most baby gear from Group 0/0+ car seats to hammocks.
• Soft Cotton-Blend Outer: Lightweight and breathable for newborn skin.
• Fleece-Lined Interior: Adds warmth and cosiness for chilly days.
• Ergonomic Footmuff Shape: Conforms to baby’s body for security with natural leg movement.
• Velcro Fastening on Flaps: Makes wrapping and adjusting easy and secure.
• Premature Baby Friendly: Gentle support from day one.
• Lightweight and Compact: Easy to carry and store when not in use.
• Groowy System Compatible: Works with the Nest baby carrier for seamless use.
• Machine Washable Fabric: Easy to clean and care for.
• Gender-Neutral Design: Perfect for baby boys or girls.

Specifications / Size & Fit

• Age Suitability: From birth (0+ months)
• Materials: 50% cotton, 50% elastane with fleece lining
• Open Dimensions: 70 x 85 cm
• Closed Dimensions: 70 x 37 cm

Compatibility

• Compatible with: Group 0/0+ car seats, carrycots, baby carriers, pushchairs, cots, cribs, and hammocks

Ideal Uses

• Everyday Travel: Keep baby warm in car seats and pushchairs.
• Sleep Support: Swaddle safely in cribs and bassinets.
• Newborn Essentials: A must-have for hospital bags or first baby gear.
• All-Weather Comfort: Lightweight yet warm, ideal for year-round use.

Standard Delivery
Our standard delivery is 5-7 working days unless stated otherwise.

We will always aim to deliver within this timeframe and will contact you if we are made aware of any delays that might extend delivery.

Please get in touch before placing your order via our contact form if you would like a more accurate delivery timescale and we will endeavour to provide you with this information.

Estimated Delivery
Whilst we always aim to deliver orders within the timescales advertised on our website we unfortunately cannot guarantee this.

All lead times stated on our website are estimated and show how long we normally expect deliveries to take.

Estimated Delivery times can be found on the Additional Information tab and will be confirmed on the shopping basket and also in your order confirmation email.

Due to all delivery timescales being estimated we kindly ask all customers to allow an extra 7 working days on top of the estimated dates.

In Stock
If an item shows as 'In Stock' it means that a product is in stock with ourselves or our brand partner has confirmed stock availability on their most recent stock report.

The estimated delivery time shows you how long we normally expect your items to take to arrive with you.

Please note that we cannot guarantee direct delivery lead times until availability is confirmed by our brand partners.

Available to Order
On products with this status we will show an estimated delivery time based on the information provided to us by our brand partners.

Please note that we are only able to provide estimated delivery timescales on these products so please bear this in mind if you require a product urgently.

We would recommend that you contact us prior to placing your order if you want to confirm stock availability and expected delivery dates.

Pre Order
This status means that a product is currently out of stock but our brand partners have provided us with an estimated date when we can expect more stock to arrive.

Any dates stated on pre-order products are estimates and we always keep you updated if these dates change.

Please note that standard delivery times still apply after our pre-order dates so you will need to add this on top of any pre-order dates.

Delivery Charges
We offer free delivery on orders over £49.95 to most of the UK.

The postage cost on orders under this amount is £6.95.

Please visit Delivery & Returns for more information