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Ask Charles Cherney - Question #33 - What are the dimensions of my mattress?

What are the dimension of my mattress?

That's a good question - and one that can come up when you are house hunting
and examining bedrooms and thinking about room size.

Twin mattress (sometimes called a single mattress).
Twin mattress dimensions are approximately 38 inches wide and 75 inches long.

Full size mattress (sometimes called a double mattress).
Full size mattress dimensions are approximately 53 inches wide and 75 inches long.

Queen size mattress.
Queen size mattress dimensions are 60 inches wide by approximately 80 inches long.

King size mattress.
King size mattress dimensions are 76 inches wide by approximately 80 inches long.

California king size mattress.
California king size mattress dimensions are 72 inches wide by 84 inches long – 4 inches narrower and 4 inches longer than a regular king.

Remember that your mattress is likely going to have a headboard and rest on frame, and you need to add inches for that as well when imagining how a bed will fit into a space.

Visit for more information on mattresses and pillows and boxsprings and more!

For guidance on choosing your mattress, CLICK HERE.

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