Twin / Single = 39" x 84"
Super Twin / Super Single = 48" x 84"
Full / Double = 54' X 84"
Queen = 60 X 84"
King / Cal King = 72' X 84"
Please Note :
All Hardside Waterbed mattresses are 84" long, unlike conventional mattresses which are various lengths.
King size Hardside Waterbed mattresses are 72" x 84" ( Eastern King size 76" X 80" ) were never made in Hardside Waterbeds.
Hardside means a hard wood frame.
Softside means a soft foam frame. ( Softside Waterbeds )