Size
King
76 × 80 in
Commonly listed at 76 by 80 inches, which is the same length as a queen and sixteen inches more width. Everything that is annoying about a king comes from that width: the comforter is the heaviest thing in the house to launder, and a standard home washer usually cannot turn one properly.
Depths stated for King in this catalog
1 of the 4 items in the catalog cut for King state a depth on their listing. The figures below are what the sellers wrote, not what was measured here, and they are grouped by what part of the stack each item grips.
| Item | Layer | What the listing states | Deepest figure given |
|---|---|---|---|
| Amazon Basics Waterproof Protector, King | Mattress Protectors | 18 in | 18 in |
What King gets confused with
California king
A California king is narrower and longer, commonly 72 by 84 inches. It is not a bigger king, it is a differently shaped one, and neither set of sheets fits the other bed. This catalog contains no California king items.
Split king
Two Twin XL mattresses on one frame. It takes two Twin XL fitted sheets, and the comforter above it is a normal king. Buying a king fitted sheet for one is the usual mistake.
Everything here cut for King
- Pure Bamboo Viscose Sheet Set, Kingin Sheet & Pillowcase Sets
- Bedsure Comforter Set, King, 3 piecesin Comforter Sets
- Love's cabin Comforter Set, King, 7 piecesin Comforter Sets
- Amazon Basics Waterproof Protector, Kingin Mattress Protectors
To add your own layers up and see what pocket depth the result needs, use Pocket Check. To see the other four sizes side by side, go to Sizes.
Where this comes from
What is federally regulated about a mattress is how it behaves in a fire, not how big it is. These are the rules that do exist.