Gemma Thermal Comfort Plush 10-inch Full-size Memory Foam Mattress

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ITEM# 15320419
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ITEM#: 15320419

A revolutionary technology combines fully ecologically safe materials with the maximization of thermal comfort and ergonomics. Constant air circulation is possible thanks to each foam cell re-structured into a gem-like shape.

  • Creates controlled cool sleep environment free of allergens
  • Multilayer construction of Gemma foams of different resilience and memory characteristics create perfect body alignment with maximum comfort and a pleasant sense of pressure relief
  • Third party certified as Excellent in Thermal Sleep Comfort test, with at least a 35-percent better performance than other memory foam mattresses
  • Measures 10 inches thick
  • Density: Plush top layer 1.3 pounds, Visco layer 3.2 pounds, support layer 2 pounds
  • Cover: Viscose
  • Cover care instructions: Wash in warm water
  • Memory foam is resistant to dust mites and is naturally antimicrobial
  • Improves circulation while reducing pressure points that can disrupt your sleep
  • Mattress eliminates motion transfer and uncomfortable pressure points
  • Never needs turning
  • Disperses weight evenly
  • Great for platform beds and slatted frames
  • Meets all flammability standards
  • Full dimensions: 10 inches high x 54 inches wide x 74 inches long

Memory Foam Tips:
  • Remove from packaging within 72 hours of receipt.
  • This product arrives very tightly packed.
  • After unwrapping, allow product to air for a few hours.
  • Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product.

Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results.

Once opened this product is non-returnable.


Mattress Type Memory Foam
Thickness 10 Inch, 4 Inch
Memory Foam Type Foam, Memory Foam
Density 3 Pound
Support Plush
Mattress Top Plush Top
Product Features Antimicrobial, Bed in a Box
Recommended Foundation Type Bed Slats, Box Spring, Platform
Size Full
Dimensions See details
Warranty 20 year Limited Manufacturer
Model Number SPGEMP4/6
Country of Origin Spain

Product Reviews

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1 Stars
  • Most Recent

  • No Thermal Comfort At All
    Verified Purchase

    I bought this mattress after trying it out at a store. I knew that I would like the firmness and support and I was not disappointed: in these regards it is quite comfortable. However, there is nothing thermally comfortable about this mattress. After you lie on it for only 5-10 minutes, it starts emitting heat back as if there is a heater inside. I tend to like warmer beds and room temperatures, but this is excessive. Even with the AC set at 68 degrees I felt like I was in a furnace and kept waking up several times. I tried a cotton mattress pad and this helped only a bit, but still the overheating continued. I called Overstock to file a complaint and ask to return it but it's been over a week now and I haven't heard from anyone. Also, there is a strong synthetic smell to the mattress that I can still feel after a week.

    Read More

Questions & Answers

  • Q:

    "Is this a non-toxic bed and what type of flame retardant is used in this bed?"

    • A:

      Hi howie111, this Gemma Thermal Comfort Plush 10-inch Full-size Memory Foam Mattress is made out of modacrylic silica (no chemicals). It is non-toxic. Thanks for your interest, hope this helps!

Shopping Tips & Inspiration

Shipping & Returns

Contact Information
Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
Standard shipping details
Expedited shipping details

Mattress Return Policy:

Mattress Sets are non-returnable upon signature at delivery. Mattresses are non-returnable if opened or taken out of their plastic wrapping.
More Details

For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.