The Devil's Sleep is a 1949 exploitation film directed by W. Merle Connell and produced by George Weiss.

[1] The film looks at juvenile delinquency, phony women's health gyms, and the pushing of narcotics to teenagers.

Using many of the same cast and crew as Test Tube Babies, the film is the first of Timothy Farrell's "Umberto Scalli" trilogy.

Umberto Scalli has returned from a prison sentence with two lucrative enterprises: a women's health spa that gives the women Dinitrophenol tablets that reduce weight but may have dangerous side effects; and selling Benzedrine to teenagers through a young man who provides them through swinging parties held at a house Scalli owns.

Judge Rosalind Ballentine and Police Detective Sergeant Dave Kerrigan unite to end the menace, but Scalli attempts to blackmail the judge with photographs of her daughter Margie willfully drugged and nude at one of the parties.