Which Oliver Sacks book is about treatment of sleeping sickness?

'Awakenings' is a 1973 non-fiction book by Oliver Sacks. It recounts the life histories of those who had been victims of the 1920s encephalitis lethargica epidemic. Encephalitis lethargica is an atypical form of encephalitis. Also known as "sleeping sickness" or "sleepy sickness" (distinct from tsetse fly-transmitted sleeping sickness), it was first described in 1917 by the neurologist Constantin von Economo and the pathologist Jean-René Cruchet.

Sacks chronicles his efforts in the late 1960s to help these patients at the Beth Abraham Hospital (now Beth Abraham Health Services) in the Bronx, New York. The treatment used the then-new drug L-DOPA.

The book inspired the 1982 play A Kind of Alaska by Harold Pinter, performed as part of a trilogy of Pinter's plays titled Other Places, and a documentary television episode, the pilot of the British television programme Discovery. It was also made into a 1990 Oscar-nominated film, Awakenings starring Robert De Niro and Robin Williams.