A king-size mattress is best in a bigger room in your house, such as the master bedroom. Remember, your bed frame will also add a few inches to the mattress. Experts recommend a minimum room size ...

US queen vs king size bed. If you're tight on space, the next size down from a US king size bed (76 x 80 inches / 193 x 203cm) is a US queen (60 x 80 inches / 152 x 203cm). A US queen size bed is ...