Plush Mattresses For Split King Adjustable Bases

Find Plush Mattresses For Split King Adjustable Bases to create a comfortable sleep setup tailored to your space and preferences. Explore a range of plush mattress options in split king sizes and compare the choices available at Mattress Firm to find the right fit for your bedroom.

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Serta Perfect Sleeper Nurture Night 13.5" Plush Mattress

917

Starting at

$749⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Purple RestorePlus 13" Soft Hybrid Mattress

3531

Starting at

$2540⁰⁰

$3099⁰⁰

$559 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Stearns & Foster Estate 14.5" Plush Mattress

1074

Starting at

$2799⁰⁰

$3099⁰⁰

$300 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

Receive $300 Instant Gift⁴ with purchase.

Beautyrest PressureSmart 2.0 Plush Pillow Top 13.75" Mattress

2695

Starting at

$1199⁹⁹

$2399⁹⁹

$1200 OFF

Plush Comfort, best for

Side Sleepers
Temperature
Bed Partner
Pain
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Soft Mattress

3498

Starting at

$2599⁰⁰

$2999⁰⁰

$400 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Mattress

3865

Starting at

$2599⁰⁰

$2999⁰⁰

$400 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Beautyrest Black Series Three 16.75" Plush Pillow Top Mattress

1461

Starting at

$3249⁰⁰

$3849⁰⁰

$600 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest BR800 12" Plush Euro Top Mattress

737

Starting at

$1399⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 12" Plush Mattress

1144

Starting at

$1399⁹⁹

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Nurture Night 14.5" Pillow Top Mattress

1130

Starting at

$1249⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Black Series Two 16.25" Plush Pillow Top Mattress

294

Starting at

$3699⁰⁰

$4099⁰⁰

$400 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Hybrid Mattress

2945

Starting at

$1899⁰⁰

$2099⁰⁰

$200 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Purple Plus Mattress

2002

Starting at

$2080⁰⁰

$2599⁰⁰

$519 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Purple Restore 11.5" Soft Hybrid Mattress

1664

Starting at

$1830⁰⁰

$2299⁰⁰

$469 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Soft Mattress

1527

Starting at

$5099⁰⁰

$5599⁰⁰

$500 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Beautyrest Black Series Four 17.5" Medium Summit Pillow Top Mattress

606

Starting at

$4249⁰⁰

$4949⁰⁰

$700 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-ProAdapt 12" Medium Previous Generation Mattress

6549

Starting at

$2029⁷⁷

$2899⁰⁰

$869 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Temperature
Pain
Allergies
Bed Partner
Toss and Turn

Sleepy's By Sealy Spring Luna Euro Top Mattress

4447

Starting at

$599⁹⁹

Medium Comfort, best for

Back, Side, Stomach Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

Queen mattress & base now $499 with code ELEVATE

Beautyrest BR800 Greenwood 11.5" Medium Firm Mattress

3227

Starting at

$589⁹⁹

$1299⁹⁹

$710 OFF

Medium Comfort, best for

Side, Back, Stomach Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

Beautyrest BR800 Greenwood 13.5" Plush Pillow Top Mattress

2802

Starting at

$819⁹⁹

$1499⁹⁹

$680 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-LuxeBreeze Medium Hybrid 13" Mattress

2127

Starting at

$6099⁰⁰

$6599⁰⁰

$500 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Tempur-Pedic TEMPUR-LuxeAdapt 13" Soft Previous Generation Mattress

2047

Starting at

$3429⁷⁷

$4899⁰⁰

$1469 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

Sierra Sleep By Ashley Chime 12" Hybrid Mattress

1928

Starting at

$1749⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-ProBreeze Medium Hybrid 12" Mattress

1662

Starting at

$4699⁰⁰

$5199⁰⁰

$500 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Sealy Posturepedic Elite Hybrid High Point II 14" Medium Mattress

1643

Starting at

$2219⁰⁰

$2519⁰⁰

$300 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

Receive $200 Instant Gift⁴ with purchase.

Tempur-Pedic TEMPUR-LuxeBreeze Soft 13" Mattress

1555

Starting at

$4899⁰⁰

$5399⁰⁰

$500 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Plush mattresses for split king adjustable bases provide a comfortable balance of cushioning and customized support for couples who want a softer sleep surface with independent adjustability. A split king setup combines two Twin XL mattresses on separate adjustable bases to create the same overall dimensions as a standard king, allowing each sleeper to raise their head or legs, choose a preferred position and enjoy personalized comfort without disturbing their partner. Look for a plush mattress with flexible construction, responsive comfort layers and a profile approved for adjustable base use. Memory foam and hybrid mattresses are popular choices because they can contour to the body while bending with the base, helping relieve pressure around the shoulders, hips and lower back. Be sure to confirm that the mattress is compatible with a split king adjustable base and that two matching Twin XL mattresses are the correct size for the frame. Selecting the best plush mattress for a split king adjustable base also means considering materials, support and sleep preferences. A plush mattress should feel soft and cushioning on top while maintaining enough underlying support to promote comfortable spinal alignment in different adjustable positions. Couples may prefer mattresses with motion isolation, breathable comfort layers and edge support, especially if one partner changes positions or uses the adjustable base at a different angle. Shopping for a split king mattress set can also make it easier to coordinate height, comfort and compatibility across both sides of the bed. Compare plush Twin XL mattress options, mattress thickness, firmness ratings and trial or warranty details to find a setup that supports restful sleep. With the right combination of two Twin XL mattresses and an adjustable base, sleepers can create a flexible split king bed designed around their individual comfort needs.

What makes a mattress feel plush? + -

A plush mattress typically has a softer comfort layer that cushions your body and creates a cozy, conforming feel. The overall experience can vary based on the mattress materials and construction.

Are plush mattresses available with different materials? + -

Yes. Plush mattresses may include memory foam, latex, innerspring coils or hybrid combinations. Each material can create a different balance of cushioning, responsiveness and airflow.

What features should I look for in a plush mattress for an adjustable base? + -

Look for a flexible construction designed to bend and move with an adjustable base. Foam and hybrid designs are commonly made with layers that can accommodate base movement.

Can I use regular sheets with a plush mattress on an adjustable base? + -

Fitted sheets with deep, flexible pockets can help accommodate a plush mattress as the base changes position. Stretchy bedding materials may also make it easier to keep sheets in place.

How can I care for a plush mattress? + -

Rotate the mattress according to the manufacturer’s recommendations, use a breathable mattress protector and clean bedding regularly. Avoid folding or bending the mattress beyond the guidelines provided by its manufacturer.