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Sleep Number

Mattress Size Guide

How to choose the right bed size

Choosing the right bed size isn't always simple. We want to help you to find what bed size is ideal for you and your needs.

Mattress Size

Mattress Dimensions

Twin 38" wide x 75" long
Twin XL 38" wide x 80" long
Full / Double 54" wide x 75" long
Queen 60" wide x 80" long
King 76" wide x 80" long
California King 72" wide x 84" long

TWIN SIZE MATTRESS DIMENSIONS

38" X 75"

1 person

A twin bed has a width of 38 inches and is 75 inches long. The perfect bed for children’s rooms, twin beds, known also as singles, can fit comfortably into apartments or guest bedrooms. Twin mattresses are versatile and can be moved to accommodate any changes in location but will typically be too small for adults or teenagers.

Twin XL Mattress Dimensions

38" X 80"

1 person

A twin XL bed or a twin extra-long, is 38 inches wide and 80 inches long. Twin XL beds are perfect for taller individuals, dorm rooms, or shared adult bedrooms because there is more leg room but will leave adequate walking space around the bed.

Full SIZE MATTRESS DIMENSIONS

54" X 75"

1 person

Full beds measure at 54 inches wide and 75 inches long. A full-sized mattress will comfortably fit one adult but may be a squeeze for couples. Popular among young professionals and single adults, full beds are considerably more spacious versus twin mattresses while simultaneously not taking up as much space as a queen bed.

QUEEN SIZE MATTRESS DIMENSIONS

60" X 80"

2 person

A queen bed is 60 inches wide and 80 inches long. Comfortably fitting couples and tall individuals, Queen mattresses can still fit into smaller bedrooms, versus their king mattress counterparts, and allow the perfect amount of individual space.

KING SIZE MATTRESS DIMENSIONS

76" X 80"

2 person

A king bed measures up to 75 inches wide and 80 inches long. King mattresses are luxurious and spacious as they can accommodate any additions to your bed like dogs or kids. Given their large dimensions, king size beds are more difficult to move or transport, however, the Sleep Number moving guide makes it easy!

SPLIT KING SIZE MATTRESS DIMENSIONS

76" X 80"

2 person

A split king bed measures 76 inches wide and 80 inches long. The split king bed is designed to allow opposite sides of the mattress to be raised or lowered simultaneously. The split king mattress can accommodate both sleeping partners by allowing for each to have their own position and sleep number setting.

CALIFORNIA KING SIZE MATTRESS DIMENSIONS

72" X 84"

2 person

A California king bed is 72 inches long and 84 inches long. It is four inches longer but slightly narrower than a standard king bed. A California king is the longest bed and could accommodate individuals taller than 6 feet.

SPLIT CALIFORNIA KING SIZE MATTRESS DIMENSIONS

72" X 84"

2 person

A split California king size mattress measures 72 inches wide and 84 inches long. The split California king bed is designed to allow opposite sides of the mattress to be raised or lowered simultaneously. The split California king mattress can accommodate both sleeping partners by allowing for each to have their own position and sleep number setting.

FAQS


Mattress Size Comparisons


Understanding Split Beds


What Size Bed Do You Need?


Recommended Room Size based on Bed Type

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