There’s truly nothing better, to me at least, than sharing your home with family and friends. That’s a big reason why my husband and I sought out a two-bedroom space when we went home shopping last year: We knew we wanted to use the extra space as a guest room to be able to host out-of-town family and friends when they visit. We’re not the only homeowners who made an «extra bedroom» a priority, either. There are more bedrooms than people in the United States—to the tune of around 33 million. And even though they can’t all be guest rooms, I’d bet my mortgage that there are still a whole lot of empty mattresses out there.