William C. Dement

William Charles Dement (July 29, 1928 – June 17, 2020) was an American sleep researcher. He was the founder of the Sleep Research Center at Stanford University. He was a leading psychiatrist on sleep, sleep deprivation and the diagnosis and treatment of sleep disorders such as sleep apnea and narcolepsy. 
Dement was born in Wenatchee, Washington. He died on June 17, 2020 in Stanford, California from heart disease at the age of 90.