Sedative hypnotics are a class of drugs that are used to induce sleep and calmness in patients. There are several synonyms for sedative hypnotics, which are commonly used in the medical field. These include tranquillizers, sleeping pills, sedatives, anxiolytics, and hypnotics. Tranquilizers are medications that reduce anxiety and promote relaxation, while sleeping pills help people fall asleep faster and stay asleep longer. Sedatives are drugs that have a calming effect on the body and mind, whereas anxiolytics are medications that relieve anxiety. Finally, hypnotics are drugs that induce sleep and often have a sedative effect. All of these terms describe medications that are designed to promote sleep and calmness in patients.