In rental properties, queen and king-sized mattresses are most common. Queens, measuring 60 inches by 80 inches, offer ample space for couples while fitting well in most rooms. Kings are preferred for larger spaces, providing extra comfort for taller or larger guests.In rental properties, queen and king-sized mattresses are most common. Queens, measuring 60 inches by 80 inches, offer ample space for couples while fitting well in most rooms. Kings are preferred for larger spaces, providing extra comfort for taller or larger guests.