Ethos Tranquility Luxury Medium

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The Tranquility Luxury beds are crafted with the most eco-friendly and natural materials – with your health and wellness in mind.  They also feature our exclusive Diamond made 9-Series Nested Wrapped Coils and ventilated Talalay Latex.
The Collection is designed for a luxurious, comfortable and extravagant night’s sleep. It’s technically developed to help you fall asleep faster, stay asleep longer and wake up feeling refreshed,
The Tranquility beds do not transfer motion between partners, allowing you to sleep throughout the night and receive deeper, more rejuvenating rest. These beds also reduce tossing and turning through the pressure relieving support of our luxurious Eco-Flex plant-based comfort layers and the most advanced, high quality components.

Available Sizes

Twin (38″ x 74″)
Twin Long (38″ x 80″)
Full/Double (53″ x 74″)
Queen (60″ x 80″)
California King (72″ x 84″)
Eastern King (76″ x 80″)

Firmness & Height

Model Firmness Height
Tranquility Luxury Super Pillow Top Luxury Plush (2) 18″
Tranquility Luxury Euro Top Luxury Medium (5) 17″
Tranquility  Luxury Firm Luxury Firm (8-9) 17″



Mattress Features & Benefits

  • Exclusively available by Diamond Mattress, our Nested Coil Spring System conforms to your body for a personalized fit.
  • Reduces tossing and turning at night by allowing each coil to move independently and relieves pressure points
  • Your partner’s movements will leave you undisturbed and sleeping soundly because our exclusive spring units do not transfer motion
  • Maintains a cool, balanced temperature throughout the night, allowing muscles to breathe and heal
  • Minimizes pressure points to reduce pain and tossing and turning by combining layers of our Eco-Flex plant-based cushioning foam over our spring system
  • Always returns to its original shape to support you night after night
  • We process all the materials right here at Diamond, so we know they are the best and we can offer a 20 year warranty that we have stood behind for 4 generations*

Adjustable Friendliness

*Note: Although our mattresses have been tested and will last 20 years, we recommend changing every 8 to 10 years. As your body changes, your mattress needs will change over time.
Ethos Tranquility Luxury Medium
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Additional information


California King, Eastern King, Full, Queen, Twin, Twin XL

With Box Foundation