I have to admit that I'm a bit confused here. 7-9 hours seems to be the "normal recommended" range, and under 6 hours puts you in the short sleepers category. W

I have to admit that I'm a bit confused here. 7-9 hours seems to be the "normal recommended" range, and under 6 hours puts you in the short sleepers category. What does 6-7 make you? Irrelevant to the research? Many people make the mistake of oversleeping on the weekend and undersleeping on working days. I try to average 6.5hrs every night, weekend or no weekend. Just being consistent really helps in keeping the energy levels up imo.