ergoPouch Sleep Sack 1.0 TOG Sleeved Willow

Infant wearing ergoPouch Sleep Sack in Willow

Infant sitting on a white mat, wearing a Sleeved Sleep Sack 1.0 TOG Willow with text overlay highlighting organic cotton and stretchy & bell-shaped design.

Happy baby lying in a wooden crib wearing a green long-sleeved sleep sack with text overlay highlighting slim-fit design for an easy transition from swaddling.

An overhead view of a baby wearing a long-sleeved, sage green leaf-patterned sleep sack lying on their back inside a wooden crib. To the right, text details key features: wash & wear, TOG-rated, and Sleeved.

ergoPouch to sleeve or not to sleeve on our Sleep Sacks

ergoPouch Sleep Sack material compilation

Newborn sitting, wearing an ergoPouch Sleeping Sack 1.0 TOG Sleeved Willow

A baby wearing a long-sleeved, sage green leaf-patterned sleep sack crawls on a light rug in front of a neutral wood-paneled wall, smiling toward the camera.

Four babies in ergoPouch Heritage collection Sleep Sacks

1.0 TOG

Sleep Sack 1.0 TOG Sleeved Willow

Name: Sleep Sack 1.0 TOG Sleeved Willow
Brand: ergoPouch
SKU: EPJL-1.0T03-12MWI23
Price: 54.95 USD
Availability: InStock
Rating: 4.7 (23 reviews)

The Sleep Suit sack is an award-winning, multi-functional sleep sack and Sleep Suit with legs in one, for babies, toddlers and kids.

4.7

Rated 4.7 out of 5 stars

23 Reviews

Size

Size Guide

3-12M 8-24M 2-4Y

Size Guide Toggle

Size Guide

Sleep Sack (formerly Jersey Sleep Sack)

Inches CM

ergoPouch Size (same as size)	Pouch Length (cm)	Child Weight (kg)	Child Height (cm)
3-12M (000-1y)	80cm	6-10kg	62-76cm
8-24M (00-2y)	90cm	8-14kg	68-92cm
2-4Y	105cm	Follow Height Markers	92-108cm

ergoPouch Size (same as size)	Pouch Length (inch)	Child Weight (lb)	Child Height (inch)
3-12M (000-1y)	31.5"	13 - 22lb	24.4 - 29.9"
8-24M (00-2y)	35.4"	18-31lb	26.8 - 36.2"
2-4Y	41.3"	Follow Height Markers	36.2 - 42.5"

Our Sleep Sack is a baby and toddler sleeping bag designed for arms-out sleepers (usually from around 3 months of age). The Sleep Sack has a slim-fit, stretchy design similar to that of a swaddle and is recommended as baby's 'first sleep sack' after the swaddling phase is over. Please use your child's weight and height to find the most appropriate and safe size for them. A sleep sack should be well fitted around the neck and the armholes to avoid your baby slipping through. It should also be bell shaped in the bottom to allow for easy leg movement. Please do not size up to the next size until your child meets the weight requirement, for safety reasons.

See full size guide for all products

Product variants

Free delivery on orders over $70*
Estimated dispatch: 16 October 2026
30-day returns and exchanges

4.7

Rated 4.7 out of 5 stars

Based on 23 reviews

Customers Talked About

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23 reviews

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Ayana M.
Verified Buyer
8/9/26
Reviewing
Sleep Sack 1.0 TOG Sleeved Willow
Rated 5 out of 5 stars
Wonderful Must Buy
Your baby will love it!
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Norma K.
Verified Buyer
6/11/26
Reviewing
Sleep Sack 1.0 TOG Sleeved Willow
Rated 5 out of 5 stars
A beautiful product.
A beautifully crafted sleeping bag. Even grandma would love one for her to sleep in. So warm and. cosy and the colour is fabulous.
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Kelli B.
Verified Buyer
5/9/26
Reviewing
Sleep Sack 1.0 TOG Sleeved Willow
Rated 5 out of 5 stars
Comfy
My 3 month old baby loves his sleep sack. We live in hot Texas and it is still a great level of warmth in the summer. It keeps him sleeping longer periods. Quality is amazing
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