Nobody likes to start off the day already exhausted because they spent the night tossing and turning thanks toinsomnia.
Taking too much acetaminophen can cause liver damage.
People also build up a tolerance quickly, which is another reason you shouldn’t take NyQuil every night.

If you get in the habit of taking it every night, it will stop having the same effect.
For example, Stahl told Shape that cognitive-behavioral therapy is an effective way to treat insomnia without using medication.
