Full-size mattresses are typically 53 inches wide and 75 inches long. Sometimes called a double mattress, a full-size mattress can comfortably fit one person shorter than 5 feet 5 inches.
Things to consider when buying a new bed include the size of the person or people and size of the room and other furniture. Having enough space for couples to sleep comfortably might mean considering queen or king-sized mattresses rather than full. Full-sized beds are considered a good size for teenagers and small adults.
Types of mattresses to choose from include traditional metal springs, coils wrapped in cloth and mattresses specifically designed for people with back pain.