# Remedies and substances

> What a drink, a cup of coffee, a pill or a supplement does to a night.

- [Are sleeping pills safe to take?](https://nitez.com/sleeping-pills): Are sleeping pills safe? What prescription pills and PM sleep aids do, the risks of one hard night versus every night, and how people come off them.
- [Do herbal sleep remedies like valerian or chamomile work?](https://nitez.com/herbal-remedies): Do valerian, chamomile, lavender or magnesium help you sleep? What trials show for each, how much products vary, and what not to mix them with.
- [Does alcohol help you sleep?](https://nitez.com/alcohol-and-sleep): Alcohol can help you fall asleep, but what happens later in the night? How drinking changes sleep, and what to do if you've had a few tonight.
- [How long does caffeine stay in your system?](https://nitez.com/caffeine-and-sleep): How long caffeine stays in your body, why an afternoon coffee keeps some people up, and how it can thin deep sleep even if you fall asleep fine.
- [Is it okay to take melatonin every night?](https://nitez.com/melatonin): Is melatonin safe to take every night? How the body's nighttime signal works, what it helps and which dose and timing make sense, with a word on children.

https://nitez.com/topics/remedies-and-substances