For me, I usually sleep seven hours on the weekday. Because I have to be full of beans in order to do my work well, so I stick to that routine as much as possible. But it is different on weekends. I can get up whenever I want.
Around 11 :00 pm. I just got my first job. In order to do it well, I have to go to bed before midnight.
As far as I know, yes. I think probably it's because of the age. They are older, they don't have the energy that young people have, so they easily get tired and sleep to recharge themselves. Another reason I think is they don't have so many things to do in a day, so why not having a sleep?
Yes. We are living in a busy modern life. Keeping a good relationship with clients, in the meantime doing our jobs well. All these need techniques and vigor. So, taking a nap at noon is really a luxury and a good way to relax and rethink what we are going to do in the rest of the day.