Medium 8-Inch Gel Memory Foam California King Mattress

Responsive Gel Comfort
22% off
New arrival
Sale price $1,572.04 Regular price $2,012.99

Highlights

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Breathable fabric keeps you cool for a fresh, restful night
+ 15 benefits & shopping perks
  • Breathable fabric keeps you cool for a fresh, restful night
  • Gel memory foam hugs your body for soothing pressure relief
  • Spacious California King size invites peaceful sleep and relaxing dreams
  • Supportive core cradles your back, easing tension and calming muscles
  • 8-inch foam mattress with responsive gel memory foam comfort
  • High density orthopedic support core provides stable contouring
  • Performance stretch fabric breathes to wick away moisture
  • Available in California King size for expansive sleep surface
  • Curated Essentials for Elevated Living: Elevate your daily routine with our handpicked home furnishings and wellness items—from plush recliners and premium mattresses to calming must-haves—bringing unmatched comfort, style, and serenity to every space.
  • Personalized Expert Advice: Get custom recommendations from our Dream Easy® Specialists, crafting a lifestyle solution that's uniquely yours for ultimate satisfaction.
  • Free Nationwide Shipping: Enjoy complimentary delivery on every order across the continental U.S. (excluding Hawaii and Alaska), simplifying your path to better living.
  • Secure, Private Checkout: Shop worry-free with our fully encrypted process, safeguarding your information at every step for complete peace of mind.
  • Risk-Free Trials & Returns: Buy confidently with our 100-day mattress exchange and easy 14-day returns on most products (excluding massage chairs and adjustable bases).
  • Earn $0.00 in Dream Easy® Rewards instantly with purchase of the Medium 8-Inch Gel Memory Foam California King Mattress!
  • Exclusive VIP tiers with increased points and free gifts
  • Trusted by 50,000+ Members

Designed for You

Omega Lifestyles memory foam mattress features responsive gel foam and a high-density orthopedic core for pressure relief and support. The performance stretch fabric wicks moisture to keep you cool, ideal for medium-firm comfort, available in California King size.

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Description

Experience Restful Nights with the Diamond Greyson Cool Gel Memory Foam Mattress

Sink into personalized comfort with the Diamond Greyson All-Foam Cool Gel Memory Foam Mattress, featuring an 8-inch medium feel that balances support and plush softness. This California King mattress uses responsive gel memory foam to contour to your body shape and weight, providing pressure relief without that overly sunk-in sensation. The performance stretch fabric cover breathes and wicks away moisture to keep your sleep surface cool, dry, and comfortable throughout the night. A hi-definition transition layer adds buoyancy for enhanced comfort, while the high-density orthopedic support core ensures spinal alignment and lasting durability. Designed to promote a rejuvenating sleep experience, this Greenguard Gold Certified mattress helps reduce allergens and toxins. At 8 inches (20 cm) thick and weighing 116 pounds, it provides stable, premium support crafted in the USA. Elevate your sleep environment today and wake up refreshed every morning.

Key Features

  • Cooling Gel Memory Foam: Conforms closely to body shape while regulating temperature.
  • Performance Stretch Fabric: Breathable, moisture-wicking for a cool, dry surface.
  • Hi-Definition Transition Layer: Adds weightless buoyancy and comfort.
  • High-Density Orthopedic Support Core: Provides stable pressure relief and spinal alignment.
  • Medium Feel Comfort: Balances softness with support for versatile sleep preferences.
  • Greenguard Gold Certified: Ensures low emissions for a healthier indoor environment.
  • Dimensions: 84 inches long x 72 inches wide x 8 inches high (213 x 183 x 20 cm).
  • Weight: 116 pounds (53 kg) for durable, sturdy construction.
  • California King Size: Ideal for spacious bedrooms and taller sleepers.
  • Made in the USA: Crafted with quality materials and rigorous standards.

Specifications

  • Details
    Specifications and Measurements Guide

    Dimensions
    Mattress Size: California King
    Length: 84 inches (213 cm)
    Width: 72 inches (183 cm)
    Height: 8 inches (20 cm)

    Weight
    Weight: 116 pounds (53 kg)

    Materials
    Cover Material: Performance Stretch Fabric for breathability
    Comfort Layer: Responsive Gel Memory Foam conforms to body shape
    Transition Layer: Hi-Definition Foam for buoyant feel
    Support Core: High Density Orthopedic Foam, CertiPUR-US certified
    Construction: Foam+Spring hybrid

    Technology Features
    Cooling Technology: Gel-infused memory foam for temperature regulation
    Moisture Wicking: Fabric wicks away moisture to keep surface dry
    Conforming Support: Memory foam adapts to body weight and shape
    Orthopedic Support: High-density foam for spine alignment
    Certifications: Greenguard Gold Certified for low chemical emissions
    Made in USA: Quality manufacturing standards
    Medium Firmness: 8-foot medium feel for balanced comfort

Delivery & Shipping Info

Free Shipping on All Orders Across the Contiguous U.S.!

  • Enjoy free, contactless delivery to your door with fast, reliable shipping across the contiguous U.S. on every order!
  • We offer post shipping premium services with room of choice setup and disposal options. Premium service options are offered after adding the item to your cart and are a 3rd party post-delivery service Powered by Loadup. These services can be closely coordinated with your item being shipped for peace of mind and convenience.
  • Note: We currently do not ship to Hawaii or Alaska
  • Shop now for convenient delivery tailored to you! Learn more about shipping options here.

Need more details? Read our Frequently Asked Questions here

Return Policy

Hassle-free returns! Not satisfied? Return most items* within 14 days of receipt for a refund or store credit. Learn more about our Dream Easy® Promise here

Need more details? Read our Frequently Asked Questions here

* Massage chairs and adjustable bases are not eligible for return. Mattresses are exchange only.

Medium 8-Inch Gel Memory Foam California King Mattress - Omega Lifestyles