Diamond Hybrid Mattress

Designed with the brilliance of diamonds for a cozier, cooler, deeper sleep

Take your sleep to the next level with the power of diamonds

  • Features Emma Diamond Degree® patented technology
  • Never sleep hot with the high density foam layer infused with graphite dust for temperature regulation
  • Dynamic body support with memory foam and 7-zone spring technology
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Make it a Bundle

49% OFF
The Diamond Bundle (1 Signature Bed + 1 Diamond Hybrid Mattress)



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Free Nationwide Delivery

Free, no contact delivery for all orders

See FAQs for Delivery Time

100-Night Trial
Not a good fit? Return it for free and get a full refund within 100 nights from delivery
10-Year Warranty
These are made to last! All mattress come with a 10-year warranty

Product Details

Mattress Core Construction

  • Diamond Degree® Graphite Foam
  • Adaptive comfort foam
  • Pocket springs
  • HRX foam
  • The colours of the foams are subject to change. This does not affect its quality or your comfort.

Mattress Cover

Removable and washable, the top of the cover is made of 99% polyester and 1% elastane, the bottom is made of 100% polyester, and the base is made of 87% polyester and 13% polypropylene.

  • Single:90x190x25 cm ≈ 35”x75”x10”
  • Double: 122x190x25 cm ≈ 48”x75”x10”
  • Full Double: 137x190x25 cm ≈ 54”x75”x10”
  • Queen: 150x190x25 cm ≈ 59”x75”x10”
  • Queen XL: 150x200x25 cm ≈ 59”x79”x10”
  • King: 180x190x25 cm ≈ 71”x75”x10”
  • King XL: 180x200x25 cm ≈ 71”x79”x10”

Our mattresses are not only made from highly durable, premium materials, the cover is certified to OEKO-TEX® Standard 100, Class 1.

Loved by Nadine

Experience cooler, more restful sleep

Our Diamond Degree Cooling Technology consists of thermally conductive graphite particles that reduce heat build-up by absorbing and drawing heat away from your body for a cooler night's sleep.

Wake up feeling sweat-free

Moisture build-up is a common occurrence in sleep as our bodies sweat throughout the night. With our hydrophilic graphite layer, moisture is absorbed and dried to keep you feeling cool and fresh under the sheets.

Proper ergonomic support

The combination of our graphite-infused memory foam layer plus adaptive pocket springs provides an even better night's sleep. The mattress easily contours to the shape of your body, further relieving pressure points and adding support where it's needed.

The Diamond Standard of Mattresses

Emma Diamond Hybrid - Layer by Layer

    • Climate-Regulating and Elastic Cover

      This fully breathable, removable, and washable premium cover is designed to help facilitate heat dissipation of the Diamond Degree graphite foam.

    • Diamond Degree® Graphite Foam

      Infused with diamond and graphite particles, this innovative coating quickly dissipates excess heat away; extending the duration of your deep sleep phase.

    • Adaptive Comfort Foam

      This ergonomically designed foam layer adapts to your body and optimally distributes body pressure, regardless of your build and sleeping position.

    • Pocket Springs

      The individually encased steel pocket springs provide dynamic body adaptation and superior breathability over a standard foam mattress.

    • Supportive HRX (Cold) Foam

      This supportive base foam layer is extremely durable and has incisions that allow the mattress to adapt well to your body.

    Customer Reviews

    Based on 206 reviews
    My Emma Bed Experience

    I am very pleased with the product's exceptional quality. Its durability and comfort are truly uncompromising. It's definitely worth the investment.

    Robin E.
    Very nice bed

    Very comfortable to sleep in. Very satisfied customer here

    Perfect firmness!

    It was soooo comfortable.
    Definitely better than any mattress I've tried before.
    Thank you for granting earlier shipment.

    Russell B.
    Undelivered, unrefunded, unfulfilled and unhappy.

    I did not receive a mattress. I was instructed to refuse delivery (which I did) and that I would receive a refund (which I did NOT receive) so that I can reorder the correct size mattress.

    Humphrey B.
    Unique kind of mattresw

    The Diamond hybrid mattress king size that we bought is very nice. We have a better good night sleep with my wife who is suffering of back pains from arthritis

    Critics trust & love us

    A true worry-free sleep experience

    At Emma, we've partnered with reliable shipping services to ensure the seamless delivery of your new Emma product right to your doorstep, completely free of charge.

    The best way to test out the Emma Sleep System is in your own home. Try it for 100 Nights worry-free and uncover exceptional sleep. If it’s not for you, we’ll handle the returns and refund back your order.

    A mattress is like having a life-long friend. And because we have so much trust in ours, we give all our Emma mattresses a 10-year manufacturer warranty.