King Bed Double Bed

Find the right fit for your space with a King Bed Double Bed from Mattress Firm. Explore bed options in king and double sizes to compare styles, designs and essentials for creating a comfortable bedroom setup that suits your needs.

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Sleepy's By Sealy Memory Foam Medium Mattress

3511

Starting at

$889⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Homelegance Lilia Storage Bed

Starting at

$509⁹⁹

$599⁹⁹

$90 OFF

Sleepy's Basic Foam Mattress

1418

Starting at

$649⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-Adapt 11" Medium Previous Generation Mattress

3652

Starting at

$2029⁷⁷

$2899⁰⁰

$869 OFF

Medium Comfort, best for

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

Tulo Bamboo 10" Medium Green Tea Memory Foam Mattress

5567

Starting at

$889⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Basics Easy Assembly Box Spring

191

Starting at

$199⁹⁹

Sleepy's Deluxe Adjustable Base

Starting at

$1399⁹⁹

Save $299 with qualifying mattress purchase. Code: ELEVATE

Purple Original Mattress

59759

Starting at

$1760⁰⁰

$2199⁰⁰

$439 OFF

Medium Comfort, best for

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

Stearns & Foster Lux Estate Elite 16" Medium Euro Pillow Top Mattress

985

Starting at

$4099⁰⁰

$4699⁰⁰

$600 OFF

Medium Comfort, best for

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

Receive $300 Instant Gift⁴ with purchase.

Beautyrest Silver BRS900 12" Plush Mattress

1149

Starting at

$1699⁹⁹

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tulo Upholstered Platform Bed Frame

118

Starting at

$238⁰⁰

$279⁹⁹

$42 OFF

Sealy Essentials Spruce 5.5" Firm Mattress

1372

Starting at

$549⁹⁹

$949⁹⁹

$400 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Tulo Metal and Wood Slat Platform Bed

124

Starting at

$322⁹⁹

$379⁹⁹

$57 OFF

Beautyrest Black Series Two 16.5" Medium Pillow Top Mattress

295

Starting at

$3699⁰⁰

$4099⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Hybrid Mattress

6031

Starting at

$3799⁰⁰

$4199⁰⁰

$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

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Firm Mattress

5043

Starting at

$3799⁰⁰

$4199⁰⁰

$400 OFF

Firm Comfort, best for

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

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

Purple RestorePlus 13" Firm Hybrid Mattress

1667

Starting at

$3600⁰⁰

$4399⁰⁰

$799 OFF

Firm Comfort, best for

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

Stearns & Foster Studio 14" Medium Mattress

1387

Starting at

$2199⁰⁰

$2499⁰⁰

$300 OFF

Medium Comfort, best for

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

Beautyrest Black Series Two 15.5" Medium Mattress

516

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Sleepy's Signature Tall Channel Tufted Upholstered Platform Bed

Starting at

$489⁹⁹

$699⁹⁹

$210 OFF

Baxton Studio Candace Luxe & Glamour Velvet Upholstered Bed

Starting at

$462⁹⁹

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

6716

Starting at

$2869⁷⁷

$4099⁰⁰

$1229 OFF

Firm Comfort, best for

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

Beautyrest BR800 Greenwood 11.5" Medium Firm Mattress

3231

Starting at

$589⁹⁹

$1299⁹⁹

$710 OFF

Medium Comfort, best for

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

Beautyrest BR800 11.5" Medium Firm Mattress

3191

Starting at

$1299⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Frisco 2.0 Medium Euro Pillow Top Mattress

2246

Starting at

$799⁹⁹

$1599⁹⁹

$800 OFF

Medium Comfort, best for

Side, Back, Stomach Sleepers
Pain
Toss and Turn
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-LuxeBreeze Medium Hybrid 13" Mattress

2151

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

A king bed and a double bed offer very different sleep experiences, making the right choice dependent on your space, comfort preferences and household needs. A standard king mattress measures approximately 76 inches wide by 80 inches long, while a double bed, also called a full-size bed, typically measures about 54 inches wide by 75 inches long. The extra width of a king bed gives couples more personal sleeping space and makes it easier for children or pets to share the bed. A double bed has a smaller footprint, so it can be a practical option for guest rooms, apartments, teenagers’ rooms or single sleepers who want more room than a twin bed provides. Choosing between a king bed and a double bed also involves considering bedroom dimensions, mattress support and available bedding. A king-size bed generally works best in a spacious primary bedroom with enough clearance for nightstands and walkways, while a double bed can fit comfortably in smaller rooms without making the space feel crowded. Shoppers comparing king and double mattresses should also think about firmness, sleep position, motion isolation and temperature regulation, since these features can affect comfort just as much as mattress size. Explore a range of king and double beds, foundations, sheets and pillows to create a sleep setup that fits your room and helps you get better zzz's.

What types of king and double beds are available? + -

King and double beds are available in several styles, including platform beds, upholstered beds, panel beds, sleigh beds and storage beds. Choose a design that complements your bedroom decor and fits your preferred features.

What materials are commonly used to make king and double beds? + -

Common materials include solid wood, engineered wood, metal and upholstered fabrics. Each material offers a different look and feel, so consider your decor preferences and the level of maintenance you prefer.

Do king and double beds come with built-in storage? + -

Some king and double beds include built-in drawers, lift-up compartments or shelving. Storage beds can help organize extra bedding, clothing and other bedroom essentials.

How do I choose a style of king or double bed? + -

Consider your bedroom decor, preferred headboard design, material and desired features. Upholstered beds can add a soft, inviting look, while wood and metal beds can create a classic, modern or industrial feel.

How should I care for a king or double bed? + -

Follow the care instructions provided with your bed. Dust wood and metal surfaces regularly, spot-clean upholstery with an appropriate cleaner and check that assembly hardware remains properly tightened over time.