---
product_id: 376286867
title: "Happiest Baby SNOO Organic Cotton Sleep Sack, Medium"
brand: "happiest baby"
price: "$4.63"
currency: USD
in_stock: false
reviews_count: 13
url: https://www.desertcart.us/products/376286867-happiest-baby-snoo-organic-cotton-sleep-sack-medium
store_origin: US
region: United States of America
---

# 100% Organic Cotton Escape-Proof Velcro & 2-Way Zipper Boosts Infant Sleep Quality Happiest Baby SNOO Organic Cotton Sleep Sack, Medium

**Brand:** happiest baby
**Price:** $4.63
**Availability:** ❌ Out of Stock

## Summary

> 🌙 Sleep Like a Pro, Swaddle Like a Boss!

## Quick Answers

- **What is this?** Happiest Baby SNOO Organic Cotton Sleep Sack, Medium by happiest baby
- **How much does it cost?** $4.63 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/376286867-happiest-baby-snoo-organic-cotton-sleep-sack-medium)

## Best For

- happiest baby enthusiasts

## Why This Product

- Trusted happiest baby brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **100% Organic Comfort:** Luxuriously soft, breathable organic cotton fabric keeps baby cozy without overheating.
- • **Ultimate Sleep Enhancer:** Special womb-like snug embrace reduces startle reflex, promoting longer, deeper baby sleep.
- • **Smart Transition Swaddle:** Arm openings unsnap for easy transition to independent sleep training with arms free.
- • **Effortless 5-Second Swaddle:** Fast, secure, and escape-proof design with quiet Velcro and dual zipper for hassle-free nighttime changes.
- • **Doctor-Designed Hip-Safe Swaddle:** Pediatrician-approved for healthy hip development with International Hip Dysplasia Institute seal.

## Overview

The Happiest Baby SNOO Sleep Sack is a top-rated, doctor-designed organic cotton swaddle that promotes healthy hip development and enhances infant sleep quality. Featuring escape-proof Velcro, a 2-way zipper, breathable mesh panels, and a womb-like snug fit, it ensures secure, comfortable, and longer sleep sessions for your baby while supporting easy diaper changes and smooth transitions to independent sleep.

## Description

desertcart.com: Happiest Baby SNOO Organic Cotton Sleep Sack, Medium | Attaches Securely to SNOO Bassinet, Helps Prevent Rolling, Organic Cotton, Arms-Out Transition, Two-Way Zipper : Baby

Review: 5 week old baby sleeps happily in his Snoo sacks! - I purchased the Snoo Sleep Sack in the Teal Planets color in size small and I have been very happy with it for my 5 week old. The fabric on this version feels noticeably softer and stretchier than the plain white Snoo sacks that I also own. My baby is over 9 pounds and 22 inches long and the Small is still fitting him well while allowing him to sleep comfortably. It's so easy to swaddle him with the velcro and zip up closure. It does a great job regulating temperature. Even during winter we do not need to layer him heavily and he sleeps very well in this sleep sack. He always seems comfortable wearing it and despite being only 5 weeks he is starting to have long sleep stretches! I definitely think part of this is because of how cozy he feels in his Snoo sacks! I would definitely purchase more of these and would choose this fabric over the plain white versions due to how soft and flexible it feels.
Review: Well made, good color to see leaks - You can’t use the snoo without them so I give it 5 stars. I do like the double zipper, the mesh to air out the swaddle and the material is think and durable. The gray is a great color bc then you can see if the swaddle is wet from a diaper leak or a spit up.

## Features

- “#1 Swaddle” New York Times: Rated America’s best baby swaddle, our SNOO Sleep Sack was designed by top pediatrician and world’s leading hip-safe swaddling expert, Dr. Harvey Karp. Perfect for healthy, growing hips (International Hip Dysplasia Institute seal of approval).
- Organic Cotton: Made from luxuriously soft organic cotton with special wings that attach to our SNOO Smart Sleeper to keep babies safely on the back. Includes extra-quiet adjustable fastener for escape-proof security and 2-way zipper that opens from top or bottom for easy midnight nappy changes.
- More Infant Sleep: Our baby swaddle sleep sack prevents startles and boosts babies’ sleep quality with special inner flaps that give the snug embrace your baby boy or girl loved in the womb. Arm openings can unsnap to allow for arms out. Great transitional swaddle for moving to crib with arms free independent sleep training.
- “5-Second Baby Swaddle”: The Happiest Baby Swaddle is the easiest, safest, fastest, escape-proof baby swaddle wrap. It promotes self-soothing and keeps babies sleeping longer than other swaddles.
- Prevents Overheating: Breathable mesh at shoulders and legs of baby warp reduce risky overheating. More secure and comfortable than other swaddlers, blankets, or baby sleepers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08XZYZ3FP |
| Additional Features | Breathable |
| Age Range Description | Baby |
| Blanket Form | Swaddle |
| Brand | Happiest Baby |
| Brand Name | Happiest Baby |
| Color | Graphite Stars |
| Customer Reviews | 4.6 out of 5 stars 1,927 Reviews |
| Fabric Type | Organic Cotton |
| Fabric Warmth Description | Lightweight |
| Fill Material | Cotton |
| Item Dimensions L x W | 9.75"L x 8"W |
| Item Type Name | Baby Sleep Sack |
| Manufacturer | Happiest Baby |
| Material | Cotton |
| Material Type | Cotton |
| Model Name | SNOO |
| Model Number | 5221SNSS104 |
| Number of Items | 1 |
| Pattern | Stars |
| Product Care Instructions | Machine Wash |
| Seasons | Winter |
| Size | Medium |
| Special Feature | Breathable |
| Style | Modern |
| Style Name | Modern |
| Theme | Stars |
| UPC | 817720022768 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Happiest Baby
- **Color:** Graphite Stars
- **Material:** Cotton
- **Special Feature:** Breathable
- **Style:** Modern

## Images

![Happiest Baby SNOO Organic Cotton Sleep Sack, Medium - Image 1](https://m.media-amazon.com/images/I/71WO-vIsA0L.jpg)
![Happiest Baby SNOO Organic Cotton Sleep Sack, Medium - Image 2](https://m.media-amazon.com/images/I/719OffxESgL.jpg)
![Happiest Baby SNOO Organic Cotton Sleep Sack, Medium - Image 3](https://m.media-amazon.com/images/I/61HouQ23uKL.jpg)
![Happiest Baby SNOO Organic Cotton Sleep Sack, Medium - Image 4](https://m.media-amazon.com/images/I/813iBRCnvWL.jpg)
![Happiest Baby SNOO Organic Cotton Sleep Sack, Medium - Image 5](https://m.media-amazon.com/images/I/61RbhM7iSnL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5 week old baby sleeps happily in his Snoo sacks!
*by M***. on January 1, 2026*

I purchased the Snoo Sleep Sack in the Teal Planets color in size small and I have been very happy with it for my 5 week old. The fabric on this version feels noticeably softer and stretchier than the plain white Snoo sacks that I also own. My baby is over 9 pounds and 22 inches long and the Small is still fitting him well while allowing him to sleep comfortably. It's so easy to swaddle him with the velcro and zip up closure. It does a great job regulating temperature. Even during winter we do not need to layer him heavily and he sleeps very well in this sleep sack. He always seems comfortable wearing it and despite being only 5 weeks he is starting to have long sleep stretches! I definitely think part of this is because of how cozy he feels in his Snoo sacks! I would definitely purchase more of these and would choose this fabric over the plain white versions due to how soft and flexible it feels.

### ⭐⭐⭐⭐⭐ Well made, good color to see leaks
*by J***R on August 11, 2026*

You can’t use the snoo without them so I give it 5 stars. I do like the double zipper, the mesh to air out the swaddle and the material is think and durable. The gray is a great color bc then you can see if the swaddle is wet from a diaper leak or a spit up.

### ⭐⭐⭐⭐⭐ The softest Snoo sack yet and the Tie Dye is adorable!
*by D***N on January 28, 2026*

We own a few different Snoo sacks, but this Tie Dye Rainbow version is by far my favorite. The 100% organic cotton feels noticeably softer and higher quality than the standard white ones. Why we love it: • Design: The tie-dye print is super cute in person vibrant but still gentle enough for a nursery. • Softness: It washed really well and stayed incredibly soft against my baby's skin. • Function: It works exactly like the original sacks (clips in easily), but adds a nice pop of color to the bassinet. Verdict: If you want to mix up the plain white look, this is a winner. Highly recommend for the softness alone!

## Frequently Bought Together

- Happiest Baby SNOO Sleep Sack - 100% Organic Cotton Baby Swaddle Blanket - Doctor Designed Promotes Healthy Hip Development (Ivory Planets, Small)
- GLLQUEN BABY Muslin Squares Cloth for Baby, 6pack 70cm x 70cm Cotton Burp Cloths for Newborn, Absorbent & Breathable and Ideal to Clean, Wipe & Cover Newborns
- Lansinoh HPA Lanolin Nipple Cream for sore nipple & cracked skin, 100% natural single ingredient, breastfeeding essential, tasteless, odourless, hospital bag, moisturising, 40ml

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-11-03*