Standard US Mattress Sizes
| Mattress Size | Width (inches) | Length (inches) |
| Twin | 39 | 75 |
| Long Twin | 39 | 80 |
| 3/4 (obsolete) | 48 | 75 |
| Full | 54 | 75 |
| Queen | 60 | 80 |
| King | 78 | 80 |
| California King | 72 | 84 |
Note that these are nominal dimensions and that manufacturers do not follow them exactly.
Tags: Home Furnishings