I've already done this. I decided one day i would do nothing. Not 'nothing' like play on my phone or watch TV. Actually nothing. I sat on the floor for the whole day. No day dreaming. I could meditate if i wanted, or just sit. It was a valuable experience. I learned what minutes and hours were. Quite exhausting.

So many people can't just do nothing. That's the source of many problems. If you haven't done this, then you should do it. It will improve the quality of many days in the future.