As far as I know, it is recommended that adults get 7-8 hours sleep a night. I usually go to bed around 11pm and on weekdays I get up at 5:40am for work. So I almost make my 7 hours. I try to do this as much as I can, having longer in my bed at the weekends. I also find that when I feel stressed, or too tired, lying on my bed with my eyes closed listening to music can relax me and help my mind stop for a bit. I think rest is important, and where we can, we should all aim to have a good sleep, or times where we can just lie down for an hour and do nothing. We’re not machines.