yea.. i think you are right 'mark' and 'languageman' at least we need time to sleep between 6-8 hours for our healthy. Thanks. ^^

i think 8...that should be the norm

Depends on the person and how old you are. I usually get about 7 hours of sleep, and I'm 31. Younger people usually need more, older people need less. Getting up and going to bed at the same time every day is important to make sure you get quality sleep and not just quantity.