It simply comes down to choosing a rug size that complements the size of your bed and your bedroom layout.
A queen size bed sits perfectly on an 8’ x 10’ area rug. A king size bed or two twin beds work great on a larger 9’ x 12’ rug, but you can also go for an extra-large 10’ by 14’ rug to accommodate larger bedroom furniture or pieces like a bedroom bench at the end of the bed.
A Cal king bed also pairs best with a roomy 10’ x 14’ bedroom rug.