---
product_id: 486653935
title: "Happiest Baby SNOO Organic Cotton Sleep Sack, Medium"
brand: "happiest baby"
price: "€ 3.70"
currency: EUR
in_stock: false
reviews_count: 13
url: https://www.desertcart.gr/products/486653935-happiest-baby-snoo-organic-cotton-sleep-sack-medium
store_origin: GR
region: Greece
---

# Made from luxuriously soft organic cotton Escape-proof adjustable fastener for secure swaddling Boosts baby sleep quality by reducing startles Happiest Baby SNOO Organic Cotton Sleep Sack, Medium

**Brand:** happiest baby
**Price:** € 3.70
**Availability:** ❌ Out of Stock

## Summary

> 🌟 Sleep smarter, parent happier — the #1 swaddle that’s redefining baby sleep!

## Quick Answers

- **What is this?** Happiest Baby SNOO Organic Cotton Sleep Sack, Medium by happiest baby
- **How much does it cost?** € 3.70 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/486653935-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

- • **Organic Comfort:** Crafted from breathable, lightweight organic cotton that’s gentle on delicate skin
- • **Smart Secure Fit:** Special wings attach to the SNOO Smart Sleeper, preventing rolling and ensuring safe back sleeping
- • **Effortless Diaper Changes:** Two-way zipper opens from top or bottom for quick midnight access without waking baby
- • **Transition-Friendly Design:** Unsnap arm openings allow arms-out swaddling for smooth crib and independent sleep training
- • **Pediatrician-Approved Safety:** Designed by Dr. Harvey Karp with hip-safe certification for healthy baby development

## Overview

The Happiest Baby SNOO Organic Cotton Sleep Sack (Medium) is a top-rated, pediatrician-designed swaddle that combines organic, breathable fabric with innovative safety features. It securely attaches to the SNOO Smart Sleeper, promotes longer, more restful sleep by preventing startles, and supports healthy hip development. With its escape-proof fasteners and convenient two-way zipper, it’s the ultimate sleep solution for modern parents seeking peace of mind and superior comfort.

## Description

Our award-winning 100% organic cotton 5-Second Swaddle
Portable Baby Sound Machine with Night Light
Responsive and portable white noise machine, lovey, and fun puppet—perfect for babies & toddlers!
We develop science-based products, content and services to enhance child well-being and to help solve everyday parenting challenges. Dr. Karp's landmark theories guide parents to understand and nurture their infants and toddlers and relieve many stressful issues, like new-parent exhaustion, infant crying and toddler tantrums. His groundbreaking
method is standard pediatric practice for soothing fussy babies in 20+ nations!
Designed by a world-renowned pediatrician, we created a suite of smart solutions using science and technology.
We help all parents raise happy and healthy children while also getting the rest they need.
Modern parents often have little experience and little hands-on help from friends and family. That is a problem because exhaustion and the stress of parenting can trigger a host of serious issues, including marital conflict, breastfeeding failure, accidents, obesity, postpartum depression/anxiety and more.
SNOO Sack has special wings that slip onto SNOO’s clips to secure babies on their backs and prevent risky rolling. This award-winning swaddle sack was created by Dr. Harvey Karp, America’s most celebrated pediatrician. Dr. Karp is the doctor whose 5 S’s started the Swaddle Revolution, so parents can rest easy knowing he designed every detail of SNOO Sleep Sack with baby safety—and parent sanity—in mind.
When using the SNOO sack with the baby's arms in, it helps prevent the startle reflex and keeps the baby's arms snugly wrapped. This can provide a sense of security and promote better sleep.
If you prefer to have your baby's arms out or if your baby shows signs of wanting more freedom of movement, the SNOO sack can also be used with the arms out.
SNOO Sleep Sack
SNOO Smart Sleeper
Sleepea 5-Second Swaddle
SNOObear White Noise
SNOObie Smart Soother
SNOO Bassinet sheet
Sky Mobile

## 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 |
|---------------|-------|
| Additional Features | Breathable |
| Age Range Description | Baby |
| Asin | B08XZYZ3FP |
| Best Sellers Rank | #10,140 in Baby (See Top 100 in Baby) #208 in Baby Wearable Blankets |
| Blanket Form | Swaddle |
| Brand Name | Happiest Baby |
| Color | Graphite Stars |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,929) 4.6 out of 5 stars |
| 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 Type | Cotton |
| Model Name | SNOO |
| Model Number | 5221SNSS104 |
| Number Of Items | 1 |
| Pattern | Stars |
| Product Care Instructions | Machine Wash |
| Recommended User Type | baby |
| Seasons | Winter |
| Size | Medium |
| Style Name | Modern |
| Theme | Stars |
| Unit Count | 1 Count |
| Upc | 817720022768 |

## 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  on Reviewed in the United States 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.

### ⭐⭐⭐⭐⭐ The softest Snoo sack yet and the Tie Dye is adorable!
*by  on Reviewed in the United States 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!

### ⭐⭐⭐⭐⭐ Well made, good color to see leaks
*by  on Reviewed in the United States 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.

## Frequently Bought Together

- Happiest Baby SNOO Sleep Sack - 100% Organic Cotton Baby Swaddle Blanket - Doctor Designed Promotes Healthy Hip Development (Graphite Stars, Medium)
- Happiest Baby SNOO Bassinet Fitted Sheet - 100% Organic Cotton Nursery Bedding - Fits SNOO Sleeper Crib Mattress (Graphite Galaxy)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.gr/products/486653935-happiest-baby-snoo-organic-cotton-sleep-sack-medium](https://www.desertcart.gr/products/486653935-happiest-baby-snoo-organic-cotton-sleep-sack-medium)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-27*