Mattress sizes can be confusing. What’s the difference, say, between an Eastern king and a California king mattress? How about a twin vs. a twin extra-long? And is a “full” the same as a “double”?
Twin (sometimes called a “single”): 38 x 75
Twin extra long: 38 x 80
Full (sometimes called a “double”): 54 x 75
Queen: 60 x 80
Eastern (standard) king, or “EK”: 76 x 80
California king, or “CK”: 72 x 84
Two twin extra-long mattresses placed side by side are the same size as an EK, so they’re sometimes used when two sleepers want differing firmnesses. Twin extra-long mattresses are also a popular choice for dorm rooms.
The full size — popularized as a “double” years ago — was previously the most popular size for couples. Now that couples are choosing mostly queen or king sizes, however, fulls are typically used for children or individual sleepers, or for guest rooms.
The most common mattress-size question of all is “Should I get a regular king or a California king?” The appeal of the California king size is an extra four inches of length, but four inches of side-by-side width must be sacrificed to achieve that, so for that reason the standard Eastern king is still the more popular choice. (Sheets for a California king can be hard to find. We do carry them here at Lifekind, however!) 🙂