Size guide
Bedding sizes describe the mattress, not the bed frame and not the room. Here is the table, and the one number most people get wrong.
| Size | Mattress | Who it suits | Designs here |
|---|---|---|---|
| Twin | 38″ × 75″ | One sleeper, bunk and loft decks | 652 |
| Twin XL | 38″ × 80″ | Same width, five inches longer | — |
| Full | 54″ × 75″ | One adult with room, two at a squeeze | 426 |
| Queen | 60″ × 80″ | The default US double | 566 |
| King | 76″ × 80″ | Two sleepers, widest standard | 254 |
| Cal King | 72″ × 84″ | Four inches narrower, four longer | — |
The overhang, which is the number that matters
A comforter is cut wider and longer than the mattress so it hangs over the sides. On a queen that usually means something close to 90″ × 90″ over a 60″ × 80″ mattress: fifteen inches of drape a side. Deep mattresses and a topper eat that margin, so if your mattress is over about twelve inches thick, size up before you size across.
The mistake to avoid is the opposite: a twin comforter on a full mattress does not simply sit high, it leaves the sides bare, and no print rescues that. Where a design here is published in several sizes, every size is listed on its own page with the finished measurements we hold.
Duvet covers are the exception
A duvet cover should match its insert, not the mattress. A cover cut larger than the insert lets the filling slide and bunch in a corner; that is what the fill and fit page is for.