How Big Is a Full Size Mattress?

By Aurelio Locsin

A full-size or double bed allows solo sleepers to stretch out or provides enough room for two. Such beds consist of a mattress, box spring and frame, which you typically buy at the same time. You can then later add furnishings such as headboards and footboards as well as side tables and chests.

Hotel Bed, White Sheets, Morning After
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Full size bed

Size

Luxury hotel room
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Two full size beds in hotel room

A full-size mattress measures 53 inches wide by 75 inches long.

Comparison

Cozy Room
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Two twin beds in bedroom

It is larger than a twin but is the smallest standard size designed for two people. However, it offers less comfort for a couple than two twin beds, which total a width of 76 inches.

Height

wake up
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Woman sleeping in bed

Though it can sleep wider-than-average people, a full only fits those who are a maximum of 5 feet 5 inches tall, if you allow for the size of the pillow.

Use

Mother Reading Picture Book for Daughter
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Mother reading with child in bed

They are popular in children's rooms because the extra width allows room for a parent to read a bedtime story or tuck in a child.

Option

Bedroom
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Queen bed in bedroom

For two people, a far more comfortable option is the queen mattress, which is 7 inches longer and 5 inches wider than the full.