(5 customer reviews)

Diamond Ethos Cove Hybrid 14 Inch Mattress



Mattress Feature


Adjustable Base

A perfect fit for any of our wide selection of adjustable bed bases.


Motion Seperation

Your mattresses ability to absorb motion when you toss and turn.


Cooling Technology

Components and materials that help provide a cool and comfortable nights’ sleep.


Breathable Surface

Enhanced airflow throughout the mattress to keep you cooler.


Environment Friendly

Made without harmful chemicals, emissions, or elements.

Back & Neck

Back & Neck Support

Your mattresses ability to stabilize and distribute weight to help maintain natural spine alignment.

Details and Specs

Delivery & Shipping
Naturally better. Hand-crafted with luxurious, eco-friendly materials, the Ethos Cove Hybrid naturally delivers a more restorative environment.

  • Quilted GOTS-certified organic cotton fabric for a soft and natural feel
  • Pressure-relieving and supportive natural latex for a weightless feel
  • Dynamic edge individually wrapped coils for supportive comfort and reduced motion transfer
  • Certipur-US certified foam for a healthier sleep
  • Made to order so your mattress is not just sitting in a warehouse
  • Hand-crafted in the USA

39″ x 75” x 14”

Twin XL
39” x 80” x 14”

54” x 75” x 14“

60″ x 80” x 14”

76“ x 80” x 14”

Cal King
72” x 84” x 14”
Delivery & Shipping

Local pickup: Free. Contact Sleep Expert to schedule pick up at 817-675-7529.

· City Select: $49.99 Delivery to your front door, side door or garage.

· City Premier: $99.99 In-Home Setup and removal of your old mattress

· City Platinum: $149.99 In-Home Setup of adjustable base and up to 3 mattress sets


Our Forever Warranty guarantees the construction, materials, quality and durability of your Diamond mattress for the original purchaser. We firmly believe in making your Diamond mattress the only mattress you’ll ever need. We back up Diamond’s quality in absolute terms, without the fancy and overly-complex legal jargon. 

NOTE: Our Forever warranty applies to the G.I.F.T. and Rally models. Additional models are covered by our 20 year warranty. See dreamstagesleep.com for details

Sleep City is committed to selling only the highest quality merchandise combined with the best possible customer service. Therefore, your new mattress and adjustable base or foundation are covered by an additional 5 year full replacement warranty.  This warranty is in addition to any manufactures warranty.

Reviews (5)

5 reviews for Diamond Ethos Cove Hybrid 14 Inch Mattress

  1. Chloe O.

    I sleep like a rock on this sucker

  2. VICKIE E.

    I ordered this bed after lots of research and reaching out to company with questions. The bed seems to be well made. It is a little firm for me but I’m older, small boned and light weight. I think it would be perfect for most people. I had been sleeping on memory foam that was sinking way too much so I wanted something that wouldn’t sink. I spoke to customer service and they gave me tips to help soften bed and also said to give it a little more time. Because I have some issues with pain I did require a topper which has made a difference. The customer service was exceptional and I would definitely recommend the bed and the company. I believe this bed will hold up for years to come.

  3. Jane C.

    This is my second mattress in 1 year. I now have Ethos Cove beds in both rooms. The bed works for both of us. Like Goldilocks! Not too soft for him and not too hard for me.

  4. peacefull s.

    wow I waited for over an year to write a review. This mattress has changed my life from a very painful nite to a peacefull sleep all through the nite without pain. I am so pleased with everything about this mattress from the delivery right to my door, to no oder from materials to the sheer comfort of the mattress, now I’m going to purchase a second one thank you so much for this mattress

  5. Ashbey C.

    I didn’t think I would like it at first since I felt it may have been too soft as I first sat on it. But lying down and sleeping on it is another thing, and it’s amazing. And unexpectedly, my chronic shoulder pain has significantly lessened, and on the days following my off days from working out, it would be nonexistent in the morning. Who knew a mattress would make such a big difference!

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