If you’re in the market for a new bed, you may be wondering which size is right for you. We all know the standard mattress sizes, such as twin, full, queen, and king. For many, the idea of a king size mattress is ideal, as it offers plenty of space for tossing and turning and sharing space with a partner. But there are actually more mattress sizes well beyond the standard king. So how many types of king beds are there? Including the standard king, there are five types of king beds.