The single waterbed is 9 inches wider than a regular twin and/or 7 inches less than a double bed. Regular sheets still won't work cause no matter the width - waterbeds are 9 inches longer than regular beds.
Here are some measurements I got off of EHow.
- Super single sheet sets come with one flat sheet, one fitted sheet and one standard pillow case. The flat sheet and the fitted sheets are sewn together at the bottom to prevent the sheets from coming off the bed. Flat sheets measure 55 inches wide by 96 inches long. Fitted sheets measure 48 inches wide by 84 inches long for a smooth fit. The standard pillowcase measures 20 by 32 inches.
- Waterbed sheets have different-size pockets to accommodate different mattress heights. Generally, super single waterbed are 16 inches tall, and sheet sets with 16-inch-deep pockets fit underneath the mattress. However, depending on the manufacturer of the mattress and how much water you have in it, you may need a sheet set with 22-inch-deep pockets for the sheet to fit under the mattress securely enough to hold the sheets in place.
|King Waterbed Measures:||72 x 84 or 6 feet x 7 feet|
|Queen Waterbed Measures||60 x 84 or 5 feet x 7 feet|
|Super Single Waterbed Measures||48 x 84 or 4 feet x 7 feet|
Read more: Measurements of Super Size Waterbed Sheets | eHow.com http://www.ehow.com/info_11414915_measurements-super-size-waterbed-sheets.html#ixzz2Kti1EHmT
Well here is another thought that would be a heck of alot easier why not buy 3 yards of material and just turn under 9 inches on each end to make one pocket the whole width of the bed. Why wouldn't that work .