Sleep Sacks

Sleep sacks offer a cozy, safe alternative to traditional blankets — wearable blankets that help babies transition from swaddling to sleeping independently, with the security of consistent warmth and none of the risk of loose bedding in the crib.

What is a sleep sack?

A wearable blanket worn over sleepwear, providing warmth and security without loose blankets in the crib. Our sleep sacks come in a range of thermal ratings from 0.5 TOG to 2.5 TOG, made from soft cotton or bamboo blends, with footed options available for extra warmth. Learn more about TOG ratings.

When to introduce a sleep sack

Babies typically transition out of swaddling when they start rolling, usually between 8 and 24 months. That's a great time to introduce a sleep sack.

What brands do we carry?

We carry Loulou Lollipop and Nest Designs new — both Canadian brands offering quality, consistent sizing, and good value. Secondhand sleep sacks are always available too, across a wider range of brands as they come through consignment.

What age do babies grow out of sleep sacks?

It's recommended not to use a loose blanket until at least one year old, which makes sleep sacks a great option for babies and toddlers. Sizing typically runs 0–6 months, 6–18 months, and 18–36 months, with footed options for older kids up to 5–6 years.

Do babies wear anything underneath?

Depends on room temperature — the sleep sack counts as the first layer and is often rated for use with just a diaper. Add a onesie or sleeper underneath for extra warmth on colder nights.

Looking for preloved sleep sacks? Browse our preloved sleep sacks collection.

15 products

Nest Designs 2.5 TOG Raglan Long Sleeve Sleep Bag – Bingo - Nest and Sprout-Nest Designs

Nest Designs 2.5 TOG Raglan Long Sleeve Sleep Bag – Bingo Nest Designs

$74⁰⁰

Nest Designs 1.0 TOG Removable Sleeve Sleep Bag – Bingo - Nest and Sprout-Nest Designs

Nest Designs 1.0 TOG Removable Sleeve Sleep Bag – Bingo Nest Designs

$70⁰⁰

Nest Designs 1.0 TOG Removable Sleeve Sleep Bag – Alouette - Nest and Sprout-Nest Designs

Nest Designs 1.0 TOG Removable Sleeve Sleep Bag – Alouette Nest Designs

$70⁰⁰

Nest Designs 2.5 TOG Removable Sleeve Sleep Bag – Old Rose - Nest and Sprout-Nest Designs

Nest Designs 2.5 TOG Removable Sleeve Sleep Bag – Old Rose Nest Designs

$78⁰⁰

Nest Designs 2.5 TOG Removable Sleeve Sleep Bag – Oceanview - Nest and Sprout-Nest Designs

Nest Designs 2.5 TOG Removable Sleeve Sleep Bag – Oceanview Nest Designs

$78⁰⁰

Nest Designs 1.0 TOG Swaddle Sleep Bag (WITH WINGS 1.5 TOG) – Alouette - Nest and Sprout-Nest Designs

Nest Designs 1.0 TOG Swaddle Sleep Bag (WITH WINGS 1.5 TOG) – Alouette Nest Designs

$62⁰⁰

Nest Designs 1.0 TOG Swaddle Sleep Bag (WITH WINGS 1.5 TOG) – Wheels On The Bus - Nest and Sprout-Nest Designs

Nest Designs 1.0 TOG Swaddle Sleep Bag (WITH WINGS 1.5 TOG) – Wheels On The Bus Nest Designs

$62⁰⁰

Nest Designs 2.5 TOG Swaddle Sleep Bag – Bingo - Nest and Sprout-Nest Designs

Nest Designs 2.5 TOG Swaddle Sleep Bag – Bingo Nest Designs

$65⁰⁰

Nest Designs 2.5 TOG Swaddle Sleep Bag (with wings 3.0TOG) – Oceanview - Nest and Sprout-Nest Designs

Nest Designs 2.5 TOG Swaddle Sleep Bag (with wings 3.0TOG) – Oceanview Nest Designs

$71⁰⁰

Nest Designs 0.5 TOG Startle Stop Sleep Bag Set (WITH WINGS 1.0) – Bingo - Nest and Sprout-Nest Designs

Nest Designs 0.5 TOG Startle Stop Sleep Bag Set (WITH WINGS 1.0) – Bingo Nest Designs

$65⁰⁰

Sold Out

Nest Designs 0.5 TOG Startle Stop Sleep Bag Set (WITH WINGS 1.0) – Five Little Ducks - Nest and Sprout-Nest Designs

Nest Designs 0.5 TOG Startle Stop Sleep Bag Set (WITH WINGS 1.0) – Five Little Ducks Nest Designs

$65⁰⁰

Sale

Nest Designs 1.0 TOG Removable Sleeve Sleep Bag – Fluffy Puffs - Nest and Sprout - Nest Designs

Nest Designs 1.0 TOG Removable Sleeve Sleep Bag – Fluffy Puffs Final Sale Nest Designs

$48⁰⁰ $68⁰⁰ Save 29%

Sale

Nest Designs 1.5 TOG Removable Sleeve Sleep Bag - Pink Sunset - Nest and Sprout - Nest Designs

Nest Designs 1.5 TOG Removable Sleeve Sleep Bag - Pink Sunset Final Sale Nest Designs

$49⁷⁰ $71⁰⁰ Save 30%

Loulou Lollipop Tencel Sleep Bag 1.0 TOG - Tiny Engineers - Nest and Sprout - Loulou Lollipop

Loulou Lollipop Tencel Sleep Bag 1.0 TOG - Tiny Engineers Final Sale Loulou Lollipop

$52⁴⁵

Sold Out

Loulou Lollipop Tencel Sleep Bag 1.0 TOG - Astro Explorers - Nest and Sprout - Loulou Lollipop

Loulou Lollipop Tencel Sleep Bag 1.0 TOG - Astro Explorers Final Sale Loulou Lollipop

$52⁴⁵

What TOG?

TOG is universal rating for the warmth of a wearable blanket or sleep sack. Each brand has their own recommendations and weights that you can use throughout the seasons.

Many families prefer 0.5 TOG or lighter during the hot summer months, while they switch to 2.5 TOG in the cold winter months. 1 TOG is suitable all year, and easy to layer for a variety of climates

Learn More