Drugs and diet Drugs which induce sleep, known as hypnotics , include benzodiazepines , although these interfere with REM;  Nonbenzodiazepine hypnotics such as eszopiclone Lunesta , zaleplon Sonata , and zolpidem Ambien ; Antihistamines , such as diphenhydramine Benadryl and doxylamine ; Alcohol ethanol , despite its rebound effect later in the night and interference with REM;   barbiturates , which have the same problem; melatonin , a component of the circadian clock, and released naturally at night by the pineal gland ;  and cannabis , which may also interfere with REM. But once you go back before the s, sleep starts to look a lot different. And your great, great-grandparents. Check out the result: Grateful for her smile that lights me up inside, grateful for her lips that kiss me so softly, grateful for her mind that engages me Trust me, when you act your age, but are cool and non-creepy, Type 2 VYW are literally the easiest women to have sex with quickly. It is also possible the light emitted from electronic devices may interfere with a teenager's body clock, or circadian rhythm. In many nomadic or hunter-gatherer societies, people will sleep on and off throughout the day or night depending on what is happening. I ran the hell out of there. I shall tackle each one: How would you like to purchase some mint thins to benefit the Campfire Girls of America? That was my job! My path to enlightenment will not be paved with farts. The Science Two sleeps per night may have been the method of antiquity, but tendencies towards it still linger in modern man. He would know, and what do I know? I told you I have a heart condition and my heart is starting to bother me!