Over the years I’ve spoken with a number of people about the need for a smaller than twin size bed. Often these individuals are trying to find something that can work for a cabin, for a small room or a tight space where typical beds just don’t seem to fit. Another need I’ve heard is to try and maximize the number of beds that can be placed into one room. The solution would be a bed size less wide than a standard twin but would have the same length and we refer to this in the industry as a cot size.
Also be sure to measure the bed frame, if you already have one. This will also need to fit within the headboard. The general rule when measuring the height of the headboard is this: measure half way up the wall of the room where the headboard will be placed against. Your headboard should never exceed this height! Try to find a headboard that either reaches half way or down to a few inches below that point. This will prevent the headboard from "crowding" and overpowering the room.