Affordable king size mattresses

Find affordable king size mattresses to create a comfortable sleep space without stretching your budget. Explore options at different price points and compare styles to find the right mattress for your bedroom and sleep needs.

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Sleepy's Basic Memory Foam Firm Mattress

3233

Starting at

$299⁷⁷

$999⁹⁹

$700 OFF

Firm Comfort, best for

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

Sleepy's Rest Medium Innerspring Mattress

7007

Starting at

$344⁰⁰

$1249⁹⁹

$906 OFF

Medium Comfort, best for

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

Sleepy's By Sealy Memory Foam Medium Mattress

3503

Starting at

$589⁹⁹

$889⁹⁹

$300 OFF

Medium Comfort, best for

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

Sleepy's Basic Innerspring Firm Mattress

8693

Starting at

$229⁹⁹

$249⁹⁹

$20 OFF

Firm Comfort, best for

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

Sleepy's Rest Firm 2.0 Innerspring Mattress

7007

Starting at

$449⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Sleepy's Basic Foam Mattress

1413

Starting at

$259⁹⁹

$649⁹⁹

$390 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Sealy Essentials Sudley 8.5" Firm Mattress

989

Starting at

$500⁰⁰

$999⁹⁹

$500 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Tulo Bamboo 10" Medium Green Tea Memory Foam Mattress

5567

Starting at

$379⁹⁹

$889⁹⁹

$510 OFF

Medium Comfort, best for

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

Tulo Bamboo 12" Medium Plush Green Tea Memory Foam Mattress

5567

Starting at

$429⁹⁹

$1019⁹⁹

$590 OFF

Medium Comfort, best for

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

Tulo Bamboo 8" Medium Green Tea Memory Foam Mattress

5567

Starting at

$329⁹⁹

$809⁹⁹

$480 OFF

Medium Comfort, best for

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

Beautyrest BR800 12" Plush Euro Top Mattress

739

Starting at

$569⁹⁹

$1399⁹⁹

$830 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress

1610

Starting at

$600⁰⁰

$1199⁹⁹

$600 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Toss and Turn
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

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

Sleepy's By Sealy Slumber Firm Mattress

707

Starting at

$419⁹⁹

$1699⁹⁹

$1280 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Bed Partner
Toss and Turn
Pain
Temperature

Sealy Essentials Autumn Ash 10.5" Plush Mattress

Starting at

$568⁹⁹

$1049⁹⁹

$481 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Bed Partner
Toss and Turn
Allergies

Sleepy's By Sealy Spring Luna Euro Top Mattress

4475

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

Finding an affordable king size mattress makes it easier to enjoy spacious, comfortable sleep without stretching your budget. A king mattress gives couples room to spread out while offering the supportive feel needed for restful nights. Explore affordable king size mattresses in a range of materials and comfort levels, including memory foam, innerspring and hybrid designs. Whether you prefer a plush mattress that cushions pressure points, a medium mattress with balanced comfort or a firm mattress with a more supportive feel, comparing features can help you find the right value for your sleep needs. Look for quality construction, durable materials and a comfort profile that supports your preferred sleep position so your affordable king size mattress delivers comfort night after night. Shopping for a budget-friendly king mattress does not mean you have to sacrifice selection or convenience. Mattress Firm offers king size mattresses from trusted brands in options designed for different sleep styles, body types and comfort preferences. Consider features such as cooling materials, motion isolation, edge support and adjustable base compatibility as you compare affordable king mattresses. Mattress , special offers and flexible payment options may also make it easier to bring home a comfortable king size mattress at a price that works for you. With the right combination of support, comfort and value, an affordable king size mattress can help you get better zzz's and make the most of your bedroom.

What mattress materials are available in affordable king mattresses? + -

Affordable king mattresses may feature memory foam, innerspring coils, hybrid designs or a combination of materials. Each construction offers a different feel, from contouring foam to responsive coils.

How do I choose the right comfort level for an affordable king mattress? + -

Consider whether you prefer a plush, medium or firm feel. Your preferred sleep position and whether you like a more cushioned or supportive surface can help guide your choice.

Are affordable king mattresses available for different sleep positions? + -

Yes. Options are available for side, back and stomach sleepers, as well as people who change positions during the night. Look for a comfort level and construction that match your preferred way to sleep.

What type of foundation works with an affordable king mattress? + -

Many affordable king mattresses are compatible with a platform bed, adjustable base or traditional foundation. Check the mattress specifications to confirm which support surface is recommended.

How can I care for an affordable king mattress? + -

Use a properly supportive foundation, add a mattress protector and follow the care instructions from the manufacturer. Regularly washing the protector and keeping the mattress free of spills can help maintain its condition.