This organic cotton muslin baby sleep sack is designed to keep little ones cozy and secure while transitioning out of a swaddle. Made from 100% lightweight, breathable organic cotton, it promotes airflow to help reduce the risk of overheating and eliminates the need for loose blankets in the crib. With an extra-long fit for comfort and an inverted zipper for easy diaper changes, it’s a safe, practical, and sustainable sleep essential for modern nurseries.

Why Choose This Organic Baby Sleep Sack?

Safe alternative to loose blankets
Designed to be worn over pajamas, this sleep sack helps eliminate unsafe loose bedding in the crib while keeping baby warm and secure.
100% organic cotton muslin
Crafted from lightweight, breathable organic cotton that supports airflow and comfort throughout the night.
1.0 TOG for versatile comfort
Ideal for moderate temperatures and can be layered over warmer sleepwear during cooler months.
Extra-long design for movement
Sized with added length to give babies more room to wiggle, stretch, and sleep comfortably.
Easy nighttime diaper changes
Features a convenient inverted bottom zipper that allows quick and hassle-free changes without fully removing the sleep sack.
Breathable sleeveless construction
Sleeveless design enhances airflow and reduces the risk of overheating.
Consciously and sustainably made
Manufactured according to strict ecological, social, and processing standards, with recyclable packaging compliant with the Green Dot initiative.
Gentle and safer materials
Free of azo chemical compounds and designed to become softer with every wash.

Features / Included Details / Technical Specifications

Main Features

100% organic cotton muslin
Lightweight and breathable
Sleeveless design for airflow
Inverted bottom zipper
Signature hand-drawn print
Machine washable
Softens with every wash
Free of azo chemical compounds
Recyclable packaging

TOG Rating

1.0 TOG
Designed to wear over pajamas
Can be layered with warmer sleepwear in cooler temperatures

Available Sizes

0–6 months
6–18 months
18–36 months

Care Instructions

Wash before first use
Machine wash cold with like colors
Use only non-chlorine bleach when needed
Tumble dry low
Warm iron if needed
Do not dry clean

Sleeping Bags

Aden + Anais Sleeveless Muslin Sleeping Bag Coton 0-6M - Mon Fleur

Aden + Anais Organic Muslin Baby Sleeping Bag - Ballons Pink - 6-18M

Aden + Anais Organic Muslin Baby Sleeping Bag - Ballons Pink - 18-36M

Aden + Anais Organic Muslin Baby Sleeping Bag - Ballons Pink - 0-6M