Q:

What is the width of an average mattress?

A:

Quick Answer

Mattresses come in various sizes that are standardized across the industry. Depending on the size, mattresses can measure from 39 inches wide (twin) to 76 inches wide (king).

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Full Answer

The smallest mattress is the twin and it is approximately 39 inches wide and 75 inches long. A more recent entry into this size is the twin XL, which adds an additional 5 inches to the length. The full-sized mattress is 54 inches wide and a queen is very close at 60 inches. The queen-sized mattress is the most popular. The king-sized mattress is much wider than the queen at 76 inches.

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