Scientists have observed that, in female rabbits during their sexually receptive phases, sleep is increased after sexual intercourse with a male rabbit and after mechanical stimulation of the vagina without intercourse. However, women report that after sexual activity leading to orgasm, they feel more alert and sometimes annoyed with male partners who, after sex, seem simply to collapse and begin snoring. These different effects in men and women can lead to some discord in relationships. Appreciation that these differences are due to biological factors, rather than personality and insensitivity, may help heal hurt feelings. I have heard that women have more insomnia than men.
Men seem to be less excitable than women.
This question sounds sexist, and even a bit silly. However, the answer is really much more serious than the question. Among people who complain of chronic insomnia over age 40, there are 7 or 8 women to 1 man. The reasons for the disproportionate number of women are not known. This most important point in connection with this question, however, is that across all ages, on the average, males sleep much worse than females.