The article has a lot of positive points and good that it works for the author. But must point out some important experiences that I had: >I always believed I

The article has a lot of positive points and good that it works for the author. But must point out some important experiences that I had: >I always believed I was one of those people who just needs 9 hours of sleep, but I am now easily rested on 6-7 per night and reclaiming 2-3 hours a day Those rewards are only upto a point. There was a period, I reduced my sleep from 6-7 hours to about 4-5 hours. And I didn't feel anything. Or if I felt anything I would shake it off. I would go for my normal run of about 5 KMs, and do stretching/strength exercises after wards. The only problem was the next health checkup showed a higher BP and I had to go on meds. And please note all this while I did not feel anything out of the ordinary. So learnt the hard way, that there are no simple gains, there are trade offs. I would not recommend any sudden change to life style, few exceptions apart like kicking a proven bad habit.