Sometimes, people experience sleep ejaculations during daytime naps. While some individuals never or rarely recall dreams, others may have sexual dreams that are strongly associated with sleep ejaculations. These spontaneous emissions during sleep, also known as nocturnal emissions, are widely accepted as a normal part of sexual experiences. However, the topic of sexual behavior and sleep was not specifically covered in either the subsequent books by the Kinsey Institute or the books by Kinsey himself, which received considerable attention for discussing wet dreams or nocturnal emissions in males and females.
The discussion of the physiological origins of nocturnal emissions did not include any mention of sleep-related mechanisms. Within the chapter on Nocturnal Emissions, there was no reference to any reported instances of sleep masturbation, sleepsex with a bed partner, or sexual sleeptalking.
From our current perspective, it is likely that sleep also applies to human sexual behavior. In Kinsey’s “Individual Variation” section, he commented on the broad range of variation in human sexual behavior. However, he did not discuss sleep apart from nocturnal emissions. In separate chapters, he discussed nine factors that affect sexual outlets in the “Factors” section. Part II addressed topics such as animal contacts, homosexual outlets, intercourse with prostitutes, extra-marital intercourse, marital intercourse, pre-marital intercourse, heterosexual petting, and masturbation. Part III systematically addressed the following sexual outlets: male masturbation, female masturbation, and intercourse. In the story of human sexual behavior, we find that these outlets are common and include all aspects and kinds of individuals. However, this survey did not address sexual behavior during sleep, and it did not cover sleep-related activities other than nocturnal emissions (i.E., Involuntary masturbation). Chapter 14 did not discuss male masturbation.
Sleep orgasms in females were linked to sexual dreams, with 99% of them specifically related to nocturnal sexual dreams and nudity. Additionally, Kinsey’s book on female sexual behavior mentioned sexual responses during sleep in the index entry for sleep.
During REM sleep, spontaneous nighttime climaxes in males and females, reported to occur, were limited to five inquiries and the corresponding responses in the “involuntary sexual behaviors” section of Chapter 6 (“The Sexual Adult”). The subject of slumber was not discussed in the heading of any of the 19 chapters in the Kinsey Institute New Report on Sex. The Kinsey Institute utilized a question-and-answer arrangement based on letters containing inquiries sent to the institute. The index did not contain an entry for “sleep,” but did have 4 entries for “Rapid Eye Movement (REM) sleep, sexual arousal during”; 5 entries for “nocturnal emissions (wet dreams)”; and 3 entries for “nocturnal penile tumescence (NPT).” No inquiry or response addressed the topic of any other sexual behavior during sleep (involving either an individual alone or together with a bed partner), or sleep vocalizations with sexual content.
The topic of the nocturnal emissions report by Hite did not cover the sexual behavior and sleep information of men or women, similar to the Kinsey Reports. The Sleep Reports did not include any discussion about the context of women achieving orgasms, among the six questions. No questions were written about discussing dreams or orgasms during sleep. The questionnaire left untouched the topic about which respondents would like to speak, if there is anything on their mind. At the end of the questionnaire, respondents were not asked to add anything they would like to say that was not mentioned. Similarly, male respondents were asked at the end of their questioning if there is anything they would like to add, please. There was no response reported about sleepsex.