The Zoldyck family owns and lives at Kukuroo Mountain, a dormant volcano in the Dentora region of the Republic of Padokia, which stands 3,772 meters. Their estate is surrounded by huge stone walls guarded by a giant dog named Mike and attendants highly skilled in martial arts.
The position in which you sleep can cause your calf muscles to twitch severely. If you are in the habit of sleeping on one side with your knees bent at an angle, and your toes pointing straight, or downwards, there is a high probability that you may be caught unawares by cramps.
The cramp, or charley horse, is due to the muscle contracting (shortening and tightening) in a sudden and violent way. These nocturnal leg cramps usually occur in the calf muscle. But foot and leg cramps do happen at night also. Cramps in the thighs are less common.