A bed that measures 72 inches wide and 84 inches long. A California King bed refers to a type of bed that is larger than a standard king-size bed. It is also known as a Western King bed. A California King bed is longer and narrower than a regular king-size bed. While a standard king-size bed is typically 76 inches wide and 80 inches long, a California King bed is 72 inches wide and 84 inches long. This type of bed is often preferred by taller individuals or those who prefer more length in their sleeping space.