What Size Mattress is best for me?

Mattress Sizes:
Twin Mattress......................39" wide x 75" long
Twin XL Mattress...................39" wide x 80" long
Full Mattress........................54" wide x 75" long
Full XL Mattress....................54" wide x 80" long
Queen Mattress....................60" wide x 80" long
King Mattress.......................76" wide x 80" long
Cal King Mattress..................72" wide x 84" long
Split King Mattress (2 twin XL)...76" wide x 80" long

Metric to U.S. Conversion:
For measuring purposes, the exact conversion is as follows:
1 inch is equal to exactly 2.54 centimeters.
1 foot is equal to 30.48 centimeters.
1 meter is equal to 39.37 inches.