Sleeping with an AIDS patient does not cause HIV infection because sleeping with an AIDS patient does not cause the exchange of blood and body fluids, and HIV cannot enter the body of a healthy person, so it does not cause infection. In fact, it is not only sleeping with AIDS patients that will not infect you, but also swimming, bathing, using toilets, office utensils, telephones and tools, eating, hugging and kissing with AIDS patients will not infect you. Only unprotected sexual intercourse with an AIDS patient, or the importation of HIV-positive blood, can infect a mother with AIDS by giving birth or breastfeeding her baby. To prevent HIV infection, you should be clean, avoid prostitution, avoid premarital and extramarital sex, strictly prohibit drug use, do not share syringes with others, do not import blood and blood products, and try to use condoms to prevent HIV infection when having sex with strangers.