Shop by Size - King

Want to sleep better than the Queen of England? With 26% more sleep surface than a Queen, King size mattresses are perfect for single adult sleepers and couples who want a lot of surface area to stretch out and relax!

The standard measurement for King mattresses is 76" x 80" (6.33' x 6.7'). The king-size bed is the widest standard size you can get. A split king or dual king mattress comes in two pieces rather than one, with each piece about the size of an extra long twin mattress. This is a perfect option for couples looking for an adjustable base set with individual control!

Bed Smart Tip

Don't let your bed fall flat - upgrade your sleep space with a power base to maximize the comfort and health benefits of your mattress!

Find your perfect Power Base!

King and Split King

X1 Adjustable Base X1 Adjustable Base

X1 Adjustable Base

King 0
5 1

As Low as $399.95

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X3 Bedsmart Base X3 Bedsmart Base

X3 Bedsmart Base

King 0
5 1

As Low as $599.95

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X5 ILIFT BASE X5 ILIFT BASE

X5 ILIFT BASE

King 0
5 1

As Low as $899.95

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X7 Bedsmart Base X7 Bedsmart Base

X7 Bedsmart Base

King 0
5 1

As Low as $1,199.95

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