---
product_id: 17918362
title: "Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress, Twin Size, Bed in a Box, Medium Firm Support"
brand: "sleep innovations"
price: "¥274014"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/17918362-sleep-innovations-marley-8-inch-cooling-gel-memory-foam-mattress
store_origin: JP
region: Japan
---

# Cooling gel 8" height Made in USA Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress, Twin Size, Bed in a Box, Medium Firm Support

**Brand:** sleep innovations
**Price:** ¥274014
**Availability:** ✅ In Stock

## Summary

> 🛌 Sleep Innovations: Where Comfort Meets Cool!

## Quick Answers

- **What is this?** Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress, Twin Size, Bed in a Box, Medium Firm Support by sleep innovations
- **How much does it cost?** ¥274014 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/17918362-sleep-innovations-marley-8-inch-cooling-gel-memory-foam-mattress)

## Best For

- sleep innovations enthusiasts

## Why This Product

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

## Key Features

- • **Rest Easy:** Comes with a 10-year warranty for peace of mind.
- • **Versatile Comfort:** Perfect for all sleep positions—back, side, or stomach.
- • **Sleep Like a Dream:** Experience the ultimate in comfort with medium firm support.
- • **Stay Cool All Night:** Enjoy a refreshing sleep with cooling gel-infused foam.
- • **Quality You Can Trust:** Hypoallergenic materials with CertiPUR-US certification.

## Overview

The Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress is a twin-size mattress designed for optimal comfort and support. Featuring a dual-layer design with a soft knit cover and cooling gel-infused foam, it ensures a refreshing sleep experience. Made in the USA and Mexico, this hypoallergenic mattress is CertiPUR-US certified, offering durability and safety. With a 10-year warranty, it’s the perfect choice for anyone seeking quality sleep.

## Description

Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress, Twin Size, Bed in a Box, Medium Firm Support

## Features

- Polyester Quilted Cover
- Twin Size Memory Foam Mattress: This 8 inch cooling gel memory foam mattress features a dual layer deisgn with a soft knit cover, medium firm support, and comforting pressure relief in any sleep position
- Cooling Comfort: This twin size memory foam mattress features cooling gel infused foam with a breathable open cell design, so your sleep is cool and deep all night every night
- Support for Every Sleeper: Whether you are a stomach, back or side sleeper, you will find cooling breathability, motion isolation, and durable, high quality materials that hold their shape with a Sleep Innovations memory foam mattress in a box
- Quality First: The Marley mattress is made in the USA and Mexico. Our mattresses, mattress toppers, and pillows are all hypoallergenic and made with CertiPUR-US certified foam that is free of phthalates, heavy metals and ozone depleters, with low VOCs
- Feel Better with Sleep Innovations: We invented the memory foam bed in a box and continue to deliver sleep restoration today with innovative foams and fabrics; This twin bed mattress comes with a 10 year warranty

## Images

![Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress, Twin Size, Bed in a Box, Medium Firm Support - Image 1](https://m.media-amazon.com/images/I/414DRedepgL.jpg)
![Sleep Innovations Marley 8 Inch Cooling Gel Memory Foam Mattress, Twin Size, Bed in a Box, Medium Firm Support - Image 2](https://m.media-amazon.com/images/I/91D24cRghlS.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this mattress uncomfortable during "romantic activities"?**
A: Ithis mattress, is more for at home type use. O wouldnt take it fishing, no.

**Q: I'm a 6'1 225lb.  Is it worth the purchase?  I like a firmer bed.  Also my body runs a little hot but like to sleep cool.**
A: I weigh 265 and am happy with this mattress. We bought a 10 inch thick California king almost three years ago. My partner is a skinny 130 pounds at 6’2. He likes it because it’s good for his sciatica. It is holding up well and shows no signs of wear and tear yet. It does not sleep hot. It is not too firm. I’d say firm enough for the majority of adults over thirty. Let’s face it...you can fall asleep on a picnic bench when your twenty two. I can’t get out of a pillow top marshmallow bed anymore either. Too many achy joints.

**Q: does this mattress use fiberglass as a fire protective barrier? If not, what does it use?**
A: Hi Bruce,

Thanks for your question about our Sleep Innovations Sage 8-inch Gel Memory Foam Mattress.

Our Sage mattress does not use fiberglass as a fire protective barrier and fiberglass is not used in any of our products. This mattress meets all of the Federal flammability requirements and the protective barrier is a fiber woven into the mattress cover itself.

If you have any other questions, feel free to reach out to us via phone at 888-999-0499 or email amazonsupport@sleepinnovations.com.  We look forward to hearing from you!

- Customer Care @ Sleep Innovations

**Q: Does this mattress need a box spring? I have an IKEA bed that has wood slats**
A: your slats will be fine. i have my mattress on a trundle, which is very similar. i also have another foam mattress on Ikea slats, so you're good. (y)

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**Shop now:** [https://www.desertcart.jp/products/17918362-sleep-innovations-marley-8-inch-cooling-gel-memory-foam-mattress](https://www.desertcart.jp/products/17918362-sleep-innovations-marley-8-inch-cooling-gel-memory-foam-mattress)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-04*