Innerspring Mattresses (Traditional), Therapedic

Therapedic TheraLuxe HD Cascade Plush

The Therapedic TheraLuxe HD Cascade Plush offers the same exceptional durability as the Jackson Firm but with more upholstery for a more conforming feel. It features an additional 1″ of high-performance foam in the quilt and an additional 1″ of beneath 2″ of HyPurGel, providing extra cushioning and pressure relief. With ultra-dense 3 lb foam, 1,872 heavy-duty pocketed coils, and reinforced edge support, this mattress maintains its structure while offering a softer, more adaptive feel. Adjustable base-friendly and backed by a 20-year warranty, the Cascade is perfect for those seeking durability with extra comfort.

Qualify for 12 Months No-Interest Financing on all HD Matts or Sets!

Comfort Level

Harder

Softer

Sizes Available

Mattress Only Price ($)

Add TheraLuxe HD Reinforced Wood Foundation

Twin

$1349

$209

Twin XL

$1399

$229

Full

$1599

$249

Queen

$1699

$289

King

$2099

$429

Cal-King

$2164

$494

The HD Stands for HEAVY DUTY.

Therapedic TheraLuxe HD Cascade Plush (Medium-Plush)

Overview / Description
The Cascade Plush is the “sweet spot” in the non-ICE TheraLuxe HD lineup: noticeably softer on top than the Jackson, but still built on the same heavy-duty coil unit and high-density foams. You get a medium-plush, pressure-relieving surface for shoulders and hips without sacrificing deep support or long-term durability. At roughly 14″ tall and adjustable-friendly, it’s a strong choice if you like a more forgiving top but still want a mattress that can stand up to years of use, including for bigger bodies.

Best For

  • Side and combination sleepers who want more pressure relief than a firm bed can offer.

  • Sleepers (including heavier individuals) who like a softer surface but still need strong, underlying support.

  • Couples who want better motion isolation and edge stability than a standard plush innerspring.

Key Features

  • Medium-plush feel built on TheraLuxe QLX® HD pocketed coils and high-density foams.

  • Adjustable-friendly 14″ profile for a substantial, “luxury” build.

  • High-density comfort foams (2.1 lb and 3.0 lb) for improved durability and reduced body impressions vs. typical plush models.

  • TheraTuft™ hand tufting and TheraEdge™ foam encasement for better long-term stability and edge integrity.

  • Heavy-duty warranty and HD foundation options designed for longer life and higher loads.

Construction & Specs

  • Comfort & Transition Layers

    • Safe FR / TheraSafe™ fiber in the quilt.

    • Approx. 2″ Superior High-Density foam in the quilt (around 2.1 lb, medium-plush ILD).

    • Upholstery stack with HyPurGel® plush foam and additional high-density poly foams (3.0 lb).

  • Support System3″ 

    • TheraLuxe QLX® HD wrapped coil unit by Leggett & Platt (1872, 17gauge Quantum encased coils), designed as a heavy-duty, high-count pocketed spring system.
  • Edge Support & Base

    • 3″ of 50-lb Density compression TheraEdge™ foam encasement around the perimeter of the spring unit for edge-to-edge support.
    • Balanced base foam (extra-duty polyurethane) under the coil unit.

  • Cover & Cooling

    • Cooling stretch-knit fabric over the quilted foams for better temperature management and a smoother surface feel.

  • Mattress Height

    • Approx. 14″

  • Available Sizes
    • Twin (38″x74″)
      Twin XL (38″x80″)
      Full (54″x74″)
      Queen (60″x80″)
      King (76″x80″)
      California King (72″x84″)

Compatibility

    • Adjustable-base compatible and designed to be paired with a Therability™ heavy-duty foundation when a traditional base is preferred.

 

 

A Mattress Collection Built. To. Last.

Every day we listen to customers tell us the same story: appliances that fail after a few years, furniture that sags too soon, and mattresses that simply can’t keep up. A bed shouldn’t be one of the “disposable” items in your home. At Mattress Mart, we believe your mattress should be a durable investment in your sleep, not a short-term purchase you’re forced to replace before its time.

That’s why we proudly feature the TheraLuxe HD line by Therapedic—a collection built from the ground up for long-lasting support, exceptional durability, and real-world performance at an outstanding value. These mattresses use higher-density foams and a stronger, heavy-duty spring system than most beds on the market, so they hold their shape night after night, even for the largest sleepers and the most demanding households. They’re backed by one of the industry’s strongest warranty programs, reflecting the confidence Therapedic has in the materials and construction.

To complete the system, you can pair your TheraLuxe HD mattress with an adjustable base or with the Therability™ Heavy Duty wooden foundation, which features 20 cross-slats, 2×4 bracing, and a 105-lb build weight in queen for unmatched stability and support. This is a sleep setup designed not just to feel good in the showroom, but to stand up to years of everyday use.

If you’re tired of mattresses that break down long before you’re ready to replace them, it’s time to step up to something better. Come feel the TheraLuxe HD difference for yourself—we dare you to compare.

Not sure what makes this “HD”? See our Heavy-Duty Mattress Guide.

 

Additional Information