---
product_id: 69487055
title: "Flex Cool 2 Stage Crib Mattress and Toddler Bed Mattress, Breathable Hybrid Coil Design, Waterproof Cotton Surface, GREENGUARD GOLD Certified, Standard 52x28 Size"
brand: "sealy baby"
price: "€ 1193.77"
currency: EUR
in_stock: true
category: "Sealy Baby"
url: https://www.desertcart.hr/products/69487055-flex-cool-2-stage-crib-mattress-and-toddler-bed-mattress
store_origin: HR
region: Croatia
---

# 204 heat-tempered pocketed coils for firm support Breathable airflow channels for cooler sleep Waterproof, PVC-free barrier protects against leaks Flex Cool 2 Stage Crib Mattress and Toddler Bed Mattress, Breathable Hybrid Coil Design, Waterproof Cotton Surface, GREENGUARD GOLD Certified, Standard 52x28 Size

**Brand:** sealy baby
**Price:** € 1193.77
**Availability:** ✅ In Stock

## Summary

> 🛏️ Elevate your nursery game with the mattress that grows and protects!

## Quick Answers

- **What is this?** Flex Cool 2 Stage Crib Mattress and Toddler Bed Mattress, Breathable Hybrid Coil Design, Waterproof Cotton Surface, GREENGUARD GOLD Certified, Standard 52x28 Size by sealy baby
- **How much does it cost?** € 1193.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/69487055-flex-cool-2-stage-crib-mattress-and-toddler-bed-mattress)

## Best For

- sealy baby enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Stage Comfort:** Firm infant side + cozy toddler side grows with your child
- • **Made in USA Quality:** 75+ years family-owned craftsmanship trusted by parents nationwide
- • **Certified Safe Sleep:** GREENGUARD Gold certified for low chemical emissions & peace of mind
- • **Durable Steel Support:** American steel coil system ensures lasting posture alignment
- • **Breathable & Waterproof:** Cotton cover with airflow channels + leak-proof, PVC-free barrier

## Overview

The Sealy Baby Flex Cool 2-Stage Crib Mattress offers a breathable, dual-firmness design with 204 pocketed coils and a waterproof cotton cover. GREENGUARD Gold certified and made in the USA, it ensures a safer, cooler sleep environment from newborn to toddler years with durable steel support and hypoallergenic materials.

## Description

Product Description Give your baby the perfect balance of comfort, safety, and support with the Sealy FlexCool 2-Stage Baby waterproof crib mattress and Toddler Mattress. Designed with premium materials and trusted craftsmanship, this breathable crib mattress grows with your child from newborn to toddler years. The natural cotton cover promotes airflow and breathability, keeping baby’s sleep environment cool and comfortable, while a built-in airflow pocket enhances ventilation. Multiple layers of sustainable cotton cushioning surround a 204 heat-tempered interwoven coil system that flexes under baby’s movement for targeted support. The steel edge frame and corner pillars create firm, supportive sides for a secure sheet fit and lasting durability. Parents love the PVC-free waterproof barrier that protects against leaks and accidents without sacrificing breathability or quietness. All Sealy Crib Mattresses meet or exceed strict ASTM safety, flammability, durability, and air quality standards, including GREENGUARD Gold Certification for a healthier indoor environment. It’s also compliant with the Children’s Safe Products Act and made without phthalates, lead, latex, or harsh VOCs. Measuring approximately 52" x 28" x 5.5", this lightweight standard size crib mattress fits snugly in most cribs and toddler beds, making sheet changes quick and easy. Proudly made in the USA, Sealy Baby mattresses are trusted by families for their proven quality, safe materials, and superior comfort. Add the Sealy FlexCool 2-Stage baby bed mattress to your baby registry essentials for a peaceful night’s sleep—both for your little one and for you. From the Manufacturer Sealy Baby offers the most trusted crib mattresses and offers safe, supportive, and comfortable toddler bed mattresses, bedside baby bassinets and protective premium crib bedding that parents have depended on for decades. As the leader in safe sleep, comfort, and lasting quality for years, more babies sleep on a Sealy than any other brand in the USA. Sealy Baby crib mattresses are firmness tested to help reduce the risk of suffocation and provide a supportive sleeping surface. In addition, 100% of Sealy Baby crib mattresses are American made by experts who help create industry standards to ensure safety and quality for infants and toddlers. Every baby mattress is Non-Toxic, ASTM Certified, CPSIA Certified and Greenguard Gold Air Quality Certified for a healthier sleeping environment, tested for low chemical emissions, and are made without harsh chemicals for a safer sleep. Sealy Baby's collection of breathable bassinets, bedside sleepers, comfortable diaper changing pads and top-rated, hypoallergenic protective crib mattress pads and encasements are nursery essentials and baby registry must haves that every new parent desires for their newborn. Parents rest easier with a trusted brand, quality products and customer care that is always here to help your family sleep better.

## Features

- COOLER, SAFER SLEEP FOR BABY: Breathable cotton cover with airflow channels helps promote air circulation around your baby for a cooler sleep environment, while the waterproof, PVC-free barrier helps protect against leaks and messes. Firm crib mattress surface supports safer sleep and easy cleanup.
- GROWS WITH YOUR CHILD: Dual-stage crib mattress features a firmer infant side for newborn support and a more comfortable toddler side for growing children. Designed to fit standard full-size cribs and toddler beds with a secure 52" x 28" fit for years of dependable use.
- GREENGUARD GOLD CERTIFIED: This non-toxic crib mattress is GREENGUARD Gold Certified for low chemical emissions, helping parents create a healthier nursery environment. Supports safer sleep and peace of mind for infants and toddlers from day one through the toddler years.
- AMERICAN STEEL SUPPORT SYSTEM: Durable steel coils provide firm infant support and long-lasting posture alignment, while reinforced border edges and strength pillars help maintain a flat, supportive sleep surface. Built to perform as both a baby mattress and toddler mattress.
- MADE IN USA BY A FAMILY-OWNED COMPANY: Proudly made in the USA and backed by over 75 years of family-owned baby mattress expertise. Crafted in a dedicated manufacturing facility with trusted quality, safe sleep innovation, and long-lasting durability parents can depend on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074N6BQL3 |
| Additional Features | Baby crib mattresses standard, Breathable, Double Sided, Durable, GREENGUARD GOLD Certified, Hypoallergenic, Made in USA, Water Resistant |
| Age Range Description | Baby, Toddler |
| Best Sellers Rank | #4,587 in Baby ( See Top 100 in Baby ) #20 in Crib Mattresses |
| Brand Name | SEALY BABY |
| Color | White |
| Construction Type | Coil |
| Cover Material | Cotton |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,050) |
| Fill Material | Innerspring Coils |
| Global Trade Identification Number | 00031878249543 |
| Included Components | Crib Mattress |
| Item Depth | 5.75 inches |
| Item Dimensions | 52 x 28 x 5.75 inches |
| Item Dimensions L x W x Thickness | 52"L x 28"W x 5.75"Th |
| Item Firmness Description | Firm |
| Item Thickness | 5.75 inches |
| Item Type Name | Bed Mattress Conventional |
| Item Weight | 14.9 pounds |
| Manufacturer | Kolcraft |
| Manufacturer Part Number | EM443-STS1 |
| Manufacturer Warranty Description | Limited lifetime warranty on workmanship & materials. |
| Material Type | Cotton |
| Mattress Coil Type | Pocketed Coil |
| Mattress Comfort Layer Material | Cotton |
| Mattress Type | Standard Mattress |
| Model Name | Sealy Baby Flex Cool 2-Stage Airy Dual Firmness Waterproof Standard Toddler & Baby Crib Mattress, 51.7”x 27.3" |
| Model Number | EM443-STS1 |
| Number of Items | 1 |
| Number of Layers | 4 |
| Number of Mattress Coils | 204 |
| Number of Packs | 1 |
| Product Benefits | Provides adjustable support and comfort for infants and toddlers with a dual-firmness, hypoallergenic, breathable mattress made from high-quality, waterproof materials. |
| Product Care Instructions | Hand Wash Only |
| Set Name | Flex Cool |
| Shape | Rectangular |
| Size | Mattress Only |
| Style Name | Flex Cool |
| UPC | 031878249543 |
| Unit Count | 1 Count |
| Weight Capacity Maximum | 60 pounds |
| top-style | Tight Top |

## Product Details

- **Brand:** SEALY BABY
- **Cover Material:** Cotton
- **Fill Material:** Innerspring Coils
- **Item Firmness Description:** Firm
- **Item Weight:** 14.9 pounds
- **Number of Layers:** 4
- **Product Dimensions:** 52"L x 28"W x 5.75"Th
- **Size:** Mattress Only
- **Top Style:** Tight Top
- **Weight Limit:** 60 pounds

## Images

![Flex Cool 2 Stage Crib Mattress and Toddler Bed Mattress, Breathable Hybrid Coil Design, Waterproof Cotton Surface, GREENGUARD GOLD Certified, Standard 52x28 Size - Image 1](https://m.media-amazon.com/images/I/71TQoGfMgjL.jpg)

## Available Options

This product comes in different **Set** options.

## Questions & Answers

**Q: Does this mattress contain an inner fiberglass sleeve? You say it is made of polyfoam? Do you mean polyurethane?**
A: Hello and thank you for your interest in our Sealy Baby Flex Cool Crib Mattress. The layers are made of polyester and cotton cushioning. It does not contain polyurethane foam or fiberglass. Hope that helps!

**Q: What is the weight of the mattress itself?**
A: Hello and thank you for your interest in the Sealy Baby Flex Cool Crib Mattress! This mattress weighs 14.75 lbs. We hope this helps!

**Q: What guage steel is used in the innerspring coils and what is the material used in the mattress core?**
A: Thank you for your interest in our Sealy Flex Cool 2-Stage Airy Dual Firmness Crib and Toddler Mattress. This mattress offers a 204 coil count with a 16 gauge steel. We hope this information helps! Please feel free to reach out if you have any additional questions.

**Q: What is purpose of the Cotton cover?  That does not sound water proof**
A: Mine is waterproof. The cover is densely woven.

## Frequently Bought Together

- Sealy Baby Flex Cool Breathable Hypoallergenic 2-Stage Dual Firm Waterproof Baby Crib Mattress & Toddler Bed Mattress, Cotton Cover, 204 Premium Coils, Air Quality Certified, Made in USA, 52"x28"
- Crib Mattress Protector Sheets Fitted Waterproof Crib Mattress Pad Cover, Noiseless & Machine Wash 100% Absorbent Crib/Toddler Mattress Protector Sheet Quilted, White, 52" x 28"
- Delta Children Essex 4-in-1 Convertible Baby Crib, Bianca White with Natural Legs

---

## 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.hr/products/69487055-flex-cool-2-stage-crib-mattress-and-toddler-bed-mattress](https://www.desertcart.hr/products/69487055-flex-cool-2-stage-crib-mattress-and-toddler-bed-mattress)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-21*