A cure for bipolar, depression, schizophrenia or other mental illness would be a state of recovery where no more symptoms were present and you were returned to health permanently. This is the one that is contentious in mental illness.
Typical king-size beds measure 78 inches wide, while queen mattresses are 60 inches, full beds are 54 inches and twin beds are 39 inches wide. Visit a lumber or home improvement store and request the wood to be cut the exact length to save you some time and trouble.
A standard king-size mattress is 76 inches wide by 80 inches long. A California king mattress is longer by 4 inches (84 inches long), but narrower by 4 inches (72 inches wide). King-size mattresses range in depth from about 9 inches for memory-foam or low-end innerspring models, to 17 inches or more for deluxe pillow-top models.