Okay, we have all heard to old adage of needing 8 hours of sleep a night, but who actually and realistically gets this? What type of hours do you typically sleep? How many hours can you get away with sleeping and still function? Is there an ideal? Is there too much sleep? Personally, I can "cope" with anything from 3-5 hours sleep for a few nights in a row, but anything more than that I just need to crash and "top-up" my sleeping hours. I am nowhere near as clear-thinking with low levels of sleep. An ideal for me would be 7 hours of sleep, if I am very lucky. I would rarely, if ever, get 8 hours of sleep even at the weekend. If I am running low on sleeping hours during the week, I will try to fit in more sleep at the weekend. However, I find it difficult to cram that sleep into one sitting. So I will take a little nap late afternoon or evening before my main sleep. Typically my body tells me when I need to sleep. As much as I love sleep, I find it difficult to just "turn my brain off", like what some people can do. Unless I am worn out by exercise and mental activity all day I will have trouble sleeping. I think there is some kind of meditative ingenuity of people that can just shut their brain off for sleep and are out like a light in a few minutes.