Black Diamond Grandeur™

Grandeur™ Luxury Medium
Grandeur™ Luxury Medium
Select a View
View larger
Grandeur™ Luxury Medium
Talalay Latex
Nested Wrapped Coil System by Diamond Mattress
Individually-wrapped coils gently conform to your body for lasting comfort and support
Grandeur™ Luxury Firm
Talalay Latex
Nested Wrapped Coil System by Diamond Mattress
Grandeur™ Luxury Plush
Talalay Latex
Nested Wrapped Coil System
Build Your Perfect Bed

Select Firmness/Style:
Select Size:
Add a Foundation:
Add a Frame:
This product is not available for purchase on our online store.
Bookmark and Share

    The Grandeur beds feature the exclusive Diamond made 9-Series Nested Wrapped Coils and eco-friendly 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 Black Diamond 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.

    Firmness & Height

    ModelFirmness (learn more)Height
    Grandeur Luxury Medium
    Soft (5) 16"
    Grandeur Luxury Plush Luxury Plush (3) 16"
    Grandeur Luxury Firm
    Luxury Firm (8) 16"



    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 (learn more)

    *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.

  • Collection

    Black Diamond™


    A luxurious collection offered in 3 comfort levels, the Black Diamond Collection offers high conformability and undisturbed sleep. Our Diamond-made, nested wrapped coils don't transfer motion and conform to create a custom fit to relieve pressure.



    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

    ModelFirmness (learn more)Height
    Grandeur Luxury Medium Soft (3) 16.5"
    Grandeur Luxury Plush Luxury Plush (3) 16.5"
    Grandeur Luxury Firm Luxury Firm (8) 16.5"

    Comfort Layer

    Layers of Luxurious, High Density Eco-Flex Plant-Based Foam

    Support Layer

    9 Series Foam-Encased, Nested Wrapped Coils. Made by Diamond Mattress, they don't transfer motion and contour to the individual sleeper for a custom fit and ideal pressure relief.

    Base Layer

    Orthopedic Eco-Flex Plant-Based Base Layer

    Edge Support

    Foam Encased Edge Support System with Tri-Zoned Lumbar Support

    Cover Fabric

    Rayon 4-Way Stretch Knit Cover



    Allergen and Dust Mite Resistant


    Non-Skid Bottom



    Matching Sustainable Hard Wood Foundation

    Adjustable Friendly

    Yes, see our adjustable bases to learn more


    20 Year Limited Warranty

Other Products You May Like:

Relief Luxury Pillow Top
Abundant pressure relief and undisturbed sleep are provided by the Relief models, which feature individually wrapped coils and Cool GEL technology.
Escape Luxury Pillow Top
Our most luxurious traditional models, the Escape beds feature our exclusive nested wrapped coils and Cool GEL technology for a peaceful night's rest.

Stay Connected

Stay connected to receive updates about new products and special deals. Join us on Facebook, where we post videos, give-aways, and information that will help you sleep better. Sign up for our blog, where we post sleep tips, fun facts, videos, and our quarterly newsletter for special events and company happenings.


Are you a DM retailer? Use our online system to post your store location in our Store Locator section. You can also create your own page with information about your store and special promotions. You can connect to us via Linked-In and keep up-to-date with our team.
Enter Zip Code:
Enter Keyword: