Choosing the Right Size Bed
The right size bed is also dependent on the right size mattress. Choose a mattress that is at least 4 inches longer than the height of the tallest person sleeping on it. Then choose a bed design that will fit the mattress; and finally choose a design, size, and scale that fit the room.
The standard sizes for mattresses are as follows:
| Bed Size | Width | Length |
| Twin | 39" | 75" |
| Extra-Long Twin | 38" | 80" |
| Double | 54" | 75" |
| Queen | 60" | 80" |
| King | 76" - 78" | 80" |
| California King | 72" | 84" |
