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The Question:

What are the dimensions of a king-size mattress?

The Answer:

There are no standards in the mattress industry but the sizes below will give you some idea of different mattress sizes.

Twin 39 x 76 in.
Twin X-Long 39 x 80 in.
Full 54 x 75 in.
Queen 60 x 80 in.
King 78 x 80 in.
Cal-King 72 x 84 in.

—The Editors

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