14 Inch Twin XL Mattress in a Box - Copper Memory Foam for Back

Our review of the 14 Inch Twin XL Mattress in a Box finds it best suited for sleepers who want a supportive, medium-firm foam bed that stays cool and simplifies setup. The single biggest reason to buy is the combination of a copper-infused memory foam comfort layer and a graphene knit cooling cover, which together deliver pressure relief without trapping heat. This mattress is compressed for easy delivery and expands at home, offering a practical balance of support and contouring for people with back pain or those who prefer a firmer feel.

Key Features

• Cooling Graphene Cover: The breathable graphene knit fabric wicks away heat and moisture to help maintain a comfortable sleep temperature.
• Hidden Zipper Cover: The removable cover can be taken off without flipping the mattress, making cleaning and care straightforward.
• Copper-Infused Memory Foam: The Aerofusion memory foam contours to the body for pressure relief while copper helps reduce odors and potential skin irritation.
• Effortless Setup: The mattress ships compressed and rolled in a box and regains its shape after about 24 hours for easy installation on most frames.
• Certifications: Components are CertiPUR-US and Oeko-Tex Standard 100 certified, reducing concerns about harmful chemicals and VOCs.
• 10-Year Limited Warranty: The mattress is backed by a decade-long limited warranty for long-term peace of mind.

Who It's For

This mattress is a solid option for single adults, teens, college students, or anyone using a Twin XL size frame who needs consistent support and pressure relief; the medium-firm feel and copper-infused memory foam are particularly suited to people who suffer from back pain and need spinal support. The cooling graphene cover makes it appropriate for sleepers who run warm but still want the contouring feel of memory foam.

Shoppers who prefer a very plush, pillow-top feel or need a mattress with innerspring bounce should look elsewhere, as this is an all-foam, medium-firm design. Also note the mattress cannot be returned once opened, so buyers who require trial periods or easy returns should consider that policy before purchasing.

Pros & Cons

Pros

• Supportive medium-firm feel that helps reduce morning back pain for many sleepers.
• Cooling graphene cover and breathable foam layers that minimize heat retention compared with older memory foam designs.
• Copper-infused memory foam offers pressure relief while helping to reduce odors and skin irritation.
• CertiPUR-US and Oeko-Tex certifications and a 10-year limited warranty provide safety and durability assurances.

Cons

• Durability reports are mixed among customers, so long-term performance may vary depending on use and body weight.
• Non-returnable after opening, which could be a drawback for buyers who want a traditional trial period.

Specifications

Size	Twin XL 38in x 80in x 14in
Comfort Level	Medium firm
Cover	Graphene knit fabric, removable hidden zipper
Comfort Layer	Copper-infused Aerofusion memory foam
Certifications	CertiPUR-US, Oeko-Tex Standard 100
Origin of Foam	Foam made in USA
Warranty	10-year limited warranty

Our Verdict

The 14 Inch Twin XL Mattress in a Box is recommended for sleepers who want a medium-firm, all-foam mattress that combines pressure relief with cooling performance and a practical, easy setup. Its copper-infused memory foam and graphene cover make it a good value for people with back pain or who sleep warm, though buyers should be aware of mixed long-term durability feedback and the no-return-after-opening policy.

Frequently Asked Questions

How long does the mattress take to expand?
The mattress is compressed in a box and typically takes about 24 hours to fully expand to its intended shape.

Is the cover removable for washing?
Yes, the graphene knit cover has a hidden zipper and can be removed without flipping the mattress for easier cleaning.

Are the foams certified for safety?
Yes, the mattress materials are CertiPUR-US and Oeko-Tex Standard 100 certified to limit harmful chemicals and VOCs.