Striped Sheets
Striped sheets are the best kind for a rectangular mattress size, because you can tell when they are aligned correctly and when they are aligned 90° from correctly.
In related news, the English language Wikipedia article for 'bed' lists no square mattress sizes at all. All are non-square rectangular prisms. Well, I guess if you had a 76in wide US king mattress and it was also 76in thick, that would be a square prism - but I don't think you could get it in the house, and it would thus remain a purely academic exercise.
In related news, the English language Wikipedia article for 'bed' lists no square mattress sizes at all. All are non-square rectangular prisms. Well, I guess if you had a 76in wide US king mattress and it was also 76in thick, that would be a square prism - but I don't think you could get it in the house, and it would thus remain a purely academic exercise.