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  • 80 inches long by 76 inches wide
  • King size is available for all GhostBed mattresses, including the GhostBed Classic, GhostBed Flex, GhostBed Luxe and GhostBed 3D Matrix®
  • Compare all mattresses here

Claim Your Side of the Bed

A whopping 16 inches wider than a queen, a king size mattress ensures you’ve got room to stretch, roll and turn without bothering your partner

Balance Out a Big Bedroom

Perfect for large master bedrooms, a king bed will make a statement—especially when paired with luxury bedding and an adjustable base

  • Fast, free shipping
  • 101-Night Sleep Trial
  • Industry-leading 20+ year mattress warranty
  • Mattresses proudly made in the United States
Included:
  • 1 Twin XL Adjustable Base (97cm x 204cm x 38cm)
  • 1 Queen Adjustable Base (153cm x 204cm x 38cm)
  • 2 Twin XL Adjustable Bases (193cm x 204cm x 38cm)
  • 2 Wireless Remotes
  • 1 Wireless Remote
  • 4 USB Ports
  • 12 Legs (12")
  • 6 Legs (12")
Included:
  • 1 Twin 38cm height foundation (97cm x 191cm x 38cm)
  • 1 Twin XL 23cm height foundation (97cm x 204cm x 38cm)
  • 1 Double 38cm height foundation (138cm x 191cm x 38cm)
  • 1 Queen 38cm height foundation (153cm x 204cm x 38cm)
  • 1 King 38cm height foundation (193cm x 203cm x 38cm)
  • 1 Cal King 38cm height foundation (183cm x 214cm x 38cm)
  • 2 Twin XL 38cm height foundations (193cm x 204cm x 38cm)
  • 16cm height 2-piece legs & Headboard Brackets (Optional)
  • Slip-on contemporary cover
  • 20-year warranty – Industry leading

Dimensions: 41cm x 55cm x 16cm

Dimensions: 51cm x 77cm x 18cm

Dimensions: 46cm x 61cm x 18cm

Dimensions: 51cm x 82cm x 6cm

1 Pillow Case; 1 Top Sheet; 1 Fitted Sheet

1 Pillow Case; 1 Top Sheet; 1 Fitted Sheet

2 Pillow Cases; 1 Top Sheet; 1 Fitted Sheet

2 Queen Pillow Cases; 1 Top Sheet; 1 Fitted Sheet

2 Queen Pillow Cases; 2 King Pillowcases; 1 Top Sheet; 1 Fitted Sheet

2 Queen Pillow Cases; 2 King Pillowcases; 1 Top Sheet; 1 Fitted Sheet

2 Queen Pillow Cases; 2 King Pillowcases; 1 Top Sheet; 2 Fitted Sheets

Dimensions: 96cm x 191cm x 0.64cm
Dimensions: 96cm x 204cm x 0.64cm
Dimensions: 135cm x 191cm x 0.64cm
Dimensions: 153cm x 204cm x 0.64cm
Dimensions: 193cm x 204cm x 0.64cm
Dimensions: 183cm x 214cm x 0.64cm
Dimensions: 2 Twin XL Protectors (153cm x 204cm x 0.64cm)
Dimensions: 50.8cm x 71.12cm
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Dimensions: 50.8cm x 91.44cm
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Sleep Better, Longer and Cooler with
GhostBed

Award-winning mattresses for back pain, couples, hot sleepers & more

Top Rated Mattress

Mattress Advisor

Top Rated Mattress (2021)

Best Mattress for Couples

Mattress Clarity

Best Mattress for Couples (2021)

Best Hybrid Mattress

Rizknows

Best Hybrid Mattress (2021)

Best Mattress for Couples

Sleepopolis

Best Mattress for Couples (2021)

Best Mattress for Back Pain

Best Mattress Picks

Best Mattress for Back Pain (2021)

Shop the Best King
Memory Foam & Hybrid Mattress

Experience the best in cooling, comforting sleep technology with GhostBed! Our top-rated king size mattresses feature high-quality materials & cooling elements to help you get your best sleep yet. Learn more below.

Is a King Mattress Right For Me?

Considerably bigger than a queen, a king mattress is a great choice for couples thanks to its generous size.

Consider a king size mattress for:

Large master bedrooms:

The recommended room size for a king bed starts at 12x12, depending on how much additional furniture you have.

Couples:

With its large size, a king mattress is a top choice for couples who want the option to snuggle OR spread out.

Extra companions:

Invite a child or pet to snooze with you, without sacrificing too much space or comfort.

What Are the Dimensions of a King Mattress?

The size of a king mattress is 80 inches long and 76 inches wide. It’s 16 inches wider than a queen mattress, so you have more space to spread out.

Twin

TWIN

38" x 75"

TWIN XL

38" x 80"

Double

54" x 75"

QUEEN

60" x 80"

KING

76" x 80"

CAL KING

72" x 84"

SPLIT KING

38" x 80" (Combined)

Comparing GhostBed's King Mattresses

Ready to find your perfect sleep match? See how our king mattresses stack up below.

  • Yes Ideal for every sleeper type, including side, back, stomach and combo
  • Yes Perfect for kids transitioning to a larger bed
  • Yes Medium-firm feel for optimal comfort & long-term support

4.7 Rating

Rated 4.7 out of 5
Based on 10915 reviews

Best For All
Sleeper Types

$2,050.00 $1,538.00 or

As Low As

Get my lowest price
  • Yes 7 layers of hybrid comfort—perfect for those who want a blend of supportive coils and comforting gel memory foam
  • Yes Medium feel that hugs and contours your body

4.8 Rating

Rated 4.8 out of 5
Based on 580 reviews

Best For
Pressure Relief

$3,650.00 $2,738.00 or

As Low As

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  • Yes Patent-pending 2-stage cooling features keep you sweat-free throughout the night
  • Yes Medium-plush feel contours like you’re sleeping on a cloud, while providing optimal support

4.8 Rating

Rated 4.8 out of 5
Based on 1669 reviews

Best For
Hot Sleepers

$3,750.00 $2,813.00 or

As Low As

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  • Yes Patented gel polymer layer adjusts to your body temperature to keep you cool
  • Yes Reinforced coils provide support and durability
  • Yes Soft transition foam contours beautifully to your body

4.7 Rating

Rated 4.7 out of 5
Based on 191 reviews

Best for
Support + Cooling

$4,295.00 $3,221.00 or

As Low As

Get my lowest price

Which Mattress Size is Best for Me?

To find your ideal mattress, consider the size and type of room as well as who will be sleeping on it.

Twin

Room: Small room, studio apartment, kids' room (including bunk beds)

Sleeper​: Kids, small or short body types

Twin XL

Room: Small room, studio apartment, dorm room

Sleeper​: Kids, tweens, teens, singles with taller body types

Double

Room: Medium-size room, guest room

Sleeper​: Kids with sibling, tweens, teens, singles

Queen

Room: Master bedroom, guest room

Sleeper​: Singles with pet(s), couples

King

Room: Large master bedroom (at least 12x12)

Sleeper​: Couples, couples with a child and/or pet(s)

Cal King

Room: Large master bedroom

Sleeper​: Taller body types, couples with a child and/or pet(s)

Tip: Still not sure? Use our mattress dimension guide to find your perfect fit.

Mattresses Made in Canada

GhostBed Mattresses Are Proudly Made in Canada

Not only does that mean we ship faster than other mattress companies, but we’ve also got the best customer service in the biz.

Frequently Asked Questions

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HOW BIG IS A KING MATTRESS?

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KING VS. QUEEN MATTRESS: HOW DO I CHOOSE?

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WHAT’S THE DIFFERENCE BETWEEN A KING AND CALIFORNIA KING MATTRESS?

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HOW MUCH IS A KING SIZE MATTRESS?