The Size of a Twin Mattress Waterbed

Dimensions

• Super single water bed mattresses are 48 x 84 inches. The length is typical of a water bed, but the width is 12 inches smaller than a queen size mattress. A traditional twin bed mattress is 39 x 75 inches, which means that a super single water bed allows the sleeper 9 inches more room in width and length.

Connected Bedsheets

• The connected type of super single water bed sheet has a fitted sheet with four pockets. The fitted sheet has a flat sheet sewn to the foot end of the sheet so the flat sheet stays on the bed and doesn't bunch up on you when you are sleeping. The fitted sheet is 48 x 84 inches, and the flat sheet is 55 x 96 inches.

Separate Bedsheets

• Another type of water bed sheet has a fitted sheet with four pockets and a flat sheet with two pockets at the foot end to hold the flat sheet on the bed separately from the fitted sheet. The fitted sheet is 48 x 84 inches and the flat sheet is 55 x 96 inches.

Super Single Advantages

• If you need more length than what a traditional twin mattress offers, you will find the length of the super single water bed mattress accommodating. The bed is easier to fit into a room that can't fit a traditional full size bed, which is 54 x 75 inches. The width is still wide enough for one person to sleep comfortably.