Read about Guest Beds
This type of bed is one of the best among great bed options for a small room and a convenient way to have a guest bed available when you need it, but may be stored away to free up the space in the bedroom. They provide space for sleeping a couple of people without taking up the extra space of an ordinary bed. It is great for small rooms and frequent sleepovers. If you don't need an extra sleeping place all the time, the smaller bed is put away under the main bed.