---
product_id: 666462844
title: "Serta Sleeptrue Firm 12\" Queen Memory Foam Mattress in a Box, Cooling, Breathable, and Pressure Relieving - 100 Night Trial, CertiPUR-US Certified and 10 Year Limited Warranty"
brand: "serta"
price: "¥226929"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/666462844-serta-sleeptrue-firm-12-queen-memory-foam-mattress-in-box
store_origin: JP
region: Japan
---

# 10 Year Warranty Cooling Gel Foam 12" Queen Size Serta Sleeptrue Firm 12" Queen Memory Foam Mattress in a Box, Cooling, Breathable, and Pressure Relieving - 100 Night Trial, CertiPUR-US Certified and 10 Year Limited Warranty

**Brand:** serta
**Price:** ¥226929
**Availability:** ✅ In Stock

## Summary

> 💤 Dream Big, Sleep Better!

## Quick Answers

- **What is this?** Serta Sleeptrue Firm 12" Queen Memory Foam Mattress in a Box, Cooling, Breathable, and Pressure Relieving - 100 Night Trial, CertiPUR-US Certified and 10 Year Limited Warranty by serta
- **How much does it cost?** ¥226929 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/666462844-serta-sleeptrue-firm-12-queen-memory-foam-mattress-in-box)

## Best For

- serta enthusiasts

## Why This Product

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

## Key Features

- • **Breathe Easy:** Soft, breathable cover promotes airflow for a refreshing sleep experience.
- • **Sleep Like a Pro:** Experience 3 Support Zones for targeted comfort and lower back care.
- • **Unbox Your Comfort:** Delivered in a compact box, ready to unroll and unwind in minutes.
- • **Stay Cool All Night:** Cool Twist Gel Memory Foam enhances airflow and dissipates heat.
- • **Edge-to-Edge Support:** Durable foam core ensures consistent support, no matter your sleep position.

## Overview

The Serta Sleeptrue Firm 12" Queen Memory Foam Mattress combines innovative cooling technology with targeted support zones, ensuring a restful night's sleep. With a 100-night trial and CertiPUR-US certification, this mattress is designed for durability and comfort, making it a smart investment for your sleep health.

## Description

Sleeptrue Firm 12" Queen Memory Foam Mattress in a Box, Cooling, Breathable, and Pressure Relieving - 100 Night Trial, CertiPUR-US Certified and 10 Year Limited Warranty

## Features

- SUPPORT ZONES - Featuring 3 Support Zones* designed to deliver support where you need it most, delivering exceptional lower back care and a better nights sleep
- COOL TWIST GEL MEMORY FOAM - No one likes to sleep hot, that is why use cooling gel swirled into premium memory foam. This offers enhanced airflow, heat dissipation, and contouring comfort
- DURABLE FOAM CORE - The Serta Foam Core at the base of the mattress delivers consistent support from edge to edge, so you're comfortably supported no matter your sleep position
- BREATHABLE HIGH-QUALITY MATERIALS - A soft, breathable cover promotes airflow and helps you rest and wake up refreshed while our Pillow Soft Aire foam layer offers enhanced cushioning for exceptional comfort and airflow. High quality materials give the mattress a premium look and feel and feel
- SIMPLE PACKAGING AND DELIVERY - Compressed and packed neatly in a box that is delivered right to your door. Just open the box, unroll and unwind! It is normal for the mattress to take up to 72 hours to fully expand and one to two weeks to air out

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mattress Comfort Layer Material | Gel Memory Foam |
| Material Type | Foam, Memory Foam, Gel Foam |
| Fill Material | Gel Memory Foam |
| Product Care Instructions | We do not recommend applying liquids to the product. Applying liquids may stain the fabric and could potentially make the soiled area worse. Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product., To clean your mattress, we suggest applying baking soda to the soiled area and letting it stand for about 15 minutes. Then, vacuum and repeat as needed. It's important that you also air the product out as much as possible., In order to protect your mattress from stains and spills, we recommend using a mattress protector. This will also help with the overall health and lifespan of your mattress. |
| Cover Material | Cotton |
| Item Weight | 80.8 Pounds |
| Item Dimensions L x W x Thickness | 79.5"L x 60"W x 12"Th |
| Size | Queen |
| Color | Light Blue |
| Top Style | Tight Top |
| Is Customizable? | No |
| Construction Type | Gel Foam |
| Portable | No |
| Is Foldable | No |
| Is Electric | No |
| Special Features | Temperature Regulating, Durable, Pressure Relief, Breathable |
| Item Firmness Description | Firm |
| Number of Layers | 5 |

## Product Details

- **Brand:** Serta
- **Size:** Queen
- **Product Dimensions:** 79.5"L x 60"W x 12"Th
- **Item Firmness Description:** Firm
- **Top Style:** Tight Top
- **Cover Material:** Cotton
- **Number of Layers:** 5
- **Fill Material:** Gel Memory Foam
- **Special Feature:** Breathable, Durable, Pressure Relief, Temperature Regulating
- **Color:** Light Blue

## Images

![Serta Sleeptrue Firm 12" Queen Memory Foam Mattress in a Box, Cooling, Breathable, and Pressure Relieving - 100 Night Trial, CertiPUR-US Certified and 10 Year Limited Warranty - Image 1](https://m.media-amazon.com/images/I/81lzuzpFZZL.jpg)

## Available Options

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

## Frequently Bought Together

- Serta Sleeptrue Firm 12" Queen Memory Foam Mattress in a Box, Cooling, Breathable, and Pressure Relieving - 100 Night Trial, CertiPUR-US Certified and 10 Year Limited Warranty
- Utopia Bedding Waterproof Mattress Protector Queen Size, Premium Terry Mattress Cover 200 GSM, Breathable, Fitted Style with Stretchable Pockets (White)

---

## 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.jp/products/666462844-serta-sleeptrue-firm-12-queen-memory-foam-mattress-in-box](https://www.desertcart.jp/products/666462844-serta-sleeptrue-firm-12-queen-memory-foam-mattress-in-box)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-03*