Split King Bedgear Performance M3 8 Inch Height Mattress

Split King Bedgear Performance M3 8 Inch Height Mattress







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Split King Bedgear Performance M3 8 Inch Height Mattress
Split King Bedgear Performance M3 8 Inch Height Mattress

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Expert Review

The Only Dual-Sided Modular Design Mattress

by Jed Harrington

The M3 is the only mattress on the market today that offers the ability to adapt as your body does. Using a dual-sided personalization with interchangeable spring support, the M3 allows you to easily swap coil systems out for a firmer or softer level of support when you need it.

Ver-Tex Fabric

Cool-to-the-touch material is woven with near-metallic fibers that conduct heat away from the body and act as an impenetrable barrier against moisture.

Air-X Fabric

Air flow material that acts as a three-dimensional channel to vent warm air from the core of your mattress.

React Foam

Contours to you for weightless support. Made with breathable materials, this softer foam won't trap heat or feel stuffy.

Boost Foam

Provides a gentle, satisfying lift--while allowing air to pass through to prevent overheating.

Modular Support

Featuring interchangable support systems, the M3 provides the ability to choose your level of support based on your needs, and change them if necessary.

A Fantastic All-Around Choice

The M3 Mattress by Bedgear is a perfect choice for anyone looking for a premium mattress designed all around adapting to your body as your needs evolve.


Quilt - Top of Mattress This is the outside cover on the top of the mattress. It covers and protects the comfort and support layers inside.

Comfort - Padding Layers This provides a cushioning layer between you and the support system in the bed. Different kinds of padding will provide different levels of comfort.

Correct Back Support System This is a general term used to describe how a mattress distributes and stabilizes body weight and maintains proper spinal alignment. Different materials provide different levels of support.

  • Individually Wrapped Coil

Warranty This tells you what kind of warranty you have and how long it will last. A typical warranty lasts about 10 years.


  • A218422


Cal King8"72"84"
Twin XL8"39"80"
Split King8"74"80"

Works With All Bed Types

Box Spring
Box Spring
Traditional Frames
Traditional Frames
Adjustable Bases
Adjustable Bases

Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!

Why Buy from US-Mattress

Delivery Info

Free Contactless Delivery

Putting the customer first has always been our top priority. Now it's even more important to make sure we're doing everything to keep you and the delivery personnel safe. Here are some of the steps we're taking:

  1. Contactless Delivery: Your mattress order ships FREE via UPS ground.
  2. All Mattresses are delivered in a sealed bag or box.
  3. We've enhanced cleaning and sanitizing of all facilities and trucks.

Additional Delivery Details

  1. TIMING: You'll receive your mattress in about 2 to 3 weeks anywhere in the continental 48 states that's road accessible.
  2. FURNITURE & BEDDING: Furniture & bedding deliver separately.
  3. WEEKEND OR EVENING DELIVERY: May be available for a nominal fee. Order by phone at 1-800-455-1052.
Let Us Help You
Pick the Right


  • Sleep cooler through the night with DualCool Technology
  • Feel supported with 900 Series Pocketed Coils
  • Consistent comfort with the BeautyEdge Foam Encased Edge