---
product_id: 791890698
title: "12\" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief"
brand: "duchessz"
price: "€ 936.85"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.pt/products/791890698-12-twin-size-mattress-in-a-box-medium-firm-gel
store_origin: PT
region: Portugal
---

# Gel-infused cooling foam 12-inch hybrid thickness 10-year durability warranty 12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief

**Brand:** duchessz
**Price:** € 936.85
**Availability:** ❌ Out of Stock

## Summary

> 🛏️ Elevate your sleep game with hybrid tech that’s built to last!

## Quick Answers

- **What is this?** 12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief by duchessz
- **How much does it cost?** € 936.85 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/791890698-12-twin-size-mattress-in-a-box-medium-firm-gel)

## Best For

- duchessz enthusiasts

## Why This Product

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

## Key Features

- • **Certified Safe & Durable:** CertiPUR-US foams backed by a decade-long warranty.
- • **365-Night Risk-Free Trial:** Sleep on it for a full year—no risk, all reward.
- • **All-Sleep-Position Support:** Adaptive hybrid design cradles every sleeper style.
- • **Targeted Zoned Support System:** Lumbar & hip zones reduce pressure and promote posture.
- • **Motion Isolation & Edge Support:** Sleep undisturbed with reinforced edges and coil tech.

## Overview

The Duchessz 12" Twin Size Mattress in a Box combines gel-infused memory foam with individually wrapped pocket springs to deliver balanced medium-firm support and pressure relief. Designed for all sleep positions, it features zoned lumbar support, motion isolation, and reinforced edges for maximum comfort and durability. Certified safe and backed by a 10-year warranty, it ships compressed for easy setup and includes a 365-night risk-free trial.

## Description

Duchessz Hybrid Mattress combines the contouring pressure relief of gel memory foam with the responsive support of individually pocketed coils, offering a balanced sleep surface that cradles without the deep sink of all-foam beds. Key Features: Dual Cooling System: Copper-infused gel foam draws heat away, paired with a breathable cover for enhanced airflow Zoned Edge Support: Reinforced perimeter reduces roll-off and increases usable sleep surface by approx. 15% Motion Isolation: Individually wrapped coils minimize partner disturbance—ideal for light sleepers Easy Care: Removable, machine-washable cover simplifies cleaning What's Included: 1× Hybrid Mattress (compressed in box) 1× Care Instructions 1× Warranty Registration Card Note: Allow 48–72 hours for full expansion. Initial off-gassing odor is normal and should dissipate within 24 hours.*

Review: Worth the money! Well made, supportive, comfortable mattress. - Great mattress! I purchased two of the 14 inch twin size and they are wonderful. My kids love them. The package arrived almost three full days early, so that was a wonderful surprise. The packaging was great, no damage at all. They were heavy but my son lifted and moved it all for me, I'm sure I could have done it on my own but he was there and didn't mind helping me. The shrink wrapping of the mattress was very nicely done and it took no time at all to "pop up" after opening them. They came with an envelope type opener that slit it without damaging the mattress. In less than 4 hours they were fully popped up to the 14 inches. They fit snug in the frame, and I appreciated that. My boys love them and sleep in their beds with smiles. I will definitely purchase again when we need a mattress. Great price. The memory foam and support is nice, soft but still offers nice support. My kids tend to sleep warm and they were comfortable with the heat level so that was another plus. Nice material, I really like the black rather than the traditional white. Nicely made / sewn. No complaints here. I will upload pictures to add to this in case it's helpful to you.
Review: Comfy, tall, good quality - This arrived earlier than expected. It's quite comfortable and bouncy. I only gave it about 60 hours to fluff up though, didn't really have a funky smell other than "new carpet/fabric". I hit it with some smelly good spray just because though. It did reach the full 14inches but my 14in pocket sheets didn't quite fit. That could be a sheet problem though. It fit a twin frame perfectly and was fun to watch decompress. Should have gotten a video :( You can feel the springs around the edges when putting the sheets on but not while sleeping. I don't have any back or hip pain and sleep on my side and back. It's actually more comfortable that the Purple mattress in the other bedroom. Great quality for a mattress in a box!

## Features

- 365-Night Risk-Free Trial — Experience our industry-leading home trial — sleep on your mattress for a full year with no risk. If it’s not the perfect fit, we’re here to help. Your satisfaction is our promise.
- All-Sleep-Position Support — Whether you sleep on your side, back, or stomach, our hybrid design adapts to you. A plush comfort layer cradles your body, while responsive pocket coils maintain natural spinal alignment all night long.
- Targeted Zoned Support System — Extra reinforcement in the lumbar and hip areas provides crucial support where you need it most. Our zoned coils and high-density foam reduce sinkage, promote healthy posture, and help ease back pain.
- Motion Isolation & Edge Support — Individually wrapped coils absorb movement, so you and your partner sleep undisturbed. Strong reinforced edges prevent sagging, expand your usable sleep surface, and ensure lasting stability.
- Certified Safe & Durable — All foams are CertiPUR-US certified for safety, performance, and durability. Backed by a 10-year warranty, this mattress is made to last. Simply unbox, allow 72 hours to fully expand, and enjoy.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0GCDS8Y9Q |
| Best Sellers Rank | #1,422,354 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #2,020 in Mattresses |
| Customer Reviews | 4.2 4.2 out of 5 stars (60) |
| Date First Available | December 24, 2025 |
| Item Weight | 50 pounds |
| Item model number | Z3-TM |
| Manufacturer | Duchessz |
| Product Dimensions | 80 x 60 x 12 inches |

## Product Details

- **Brand:** Duchessz
- **Color:** Grey
- **Construction Type:** Hybrid
- **Fill Material:** High Density Foam
- **Item Firmness Description:** Medium Firm
- **Item Weight:** 50 Pounds
- **Model Name:** Z3-TM
- **Product Dimensions:** 80"L x 60"W x 12"Th
- **Size:** Twin
- **Top Style:** Euro Top

## Images

![12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief - Image 1](https://m.media-amazon.com/images/I/41xjAlgPpkL.jpg)
![12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief - Image 2](https://m.media-amazon.com/images/I/518Jz0OV4JL.jpg)
![12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief - Image 3](https://m.media-amazon.com/images/I/519Vsvd68-L.jpg)
![12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief - Image 4](https://m.media-amazon.com/images/I/51MmJMJfpGL.jpg)
![12" Twin Size Mattress in a Box - Medium Firm Gel Memory Foam Hybrid with Pocket Springs for Maximum Support & Pressure Relief - Image 5](https://m.media-amazon.com/images/I/51qwaUOvU6L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth the money! Well made, supportive, comfortable mattress.
*by K***S on September 22, 2025*

Great mattress! I purchased two of the 14 inch twin size and they are wonderful. My kids love them. The package arrived almost three full days early, so that was a wonderful surprise. The packaging was great, no damage at all. They were heavy but my son lifted and moved it all for me, I'm sure I could have done it on my own but he was there and didn't mind helping me. The shrink wrapping of the mattress was very nicely done and it took no time at all to "pop up" after opening them. They came with an envelope type opener that slit it without damaging the mattress. In less than 4 hours they were fully popped up to the 14 inches. They fit snug in the frame, and I appreciated that. My boys love them and sleep in their beds with smiles. I will definitely purchase again when we need a mattress. Great price. The memory foam and support is nice, soft but still offers nice support. My kids tend to sleep warm and they were comfortable with the heat level so that was another plus. Nice material, I really like the black rather than the traditional white. Nicely made / sewn. No complaints here. I will upload pictures to add to this in case it's helpful to you.

### ⭐⭐⭐⭐⭐ Comfy, tall, good quality
*by T***N on August 28, 2025*

This arrived earlier than expected. It's quite comfortable and bouncy. I only gave it about 60 hours to fluff up though, didn't really have a funky smell other than "new carpet/fabric". I hit it with some smelly good spray just because though. It did reach the full 14inches but my 14in pocket sheets didn't quite fit. That could be a sheet problem though. It fit a twin frame perfectly and was fun to watch decompress. Should have gotten a video :( You can feel the springs around the edges when putting the sheets on but not while sleeping. I don't have any back or hip pain and sleep on my side and back. It's actually more comfortable that the Purple mattress in the other bedroom. Great quality for a mattress in a box!

### ⭐⭐⭐⭐⭐ Great Bed!
*by B***E on January 2, 2025*

I bought this bed wondering what quality it would be. I usually buy beds that are over $500. Surprisingly this bed is as comfortable as my current expensive bed. It "inflated" very quickly, after 2 hours it had expanded to 13 inches. It is great quality, feels very comfortable, is soft and firm at the same time. It seems very durable - not too soft or thin. You do not feel the springs at all! I plan to buy 2 more! Great value for your money. Definitely recommend!

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-06*