I think this is interesting, I've never heard nothing similar. Do you feel tired during the week? Can you concentrate on difficult tasks that requires attention?
I am awake 30 hours more a week than on the regular 8 hour sleep. By the time I'm 50, I've have been conscious 5 years longer than most people.
I don't think you'd meet any older person who won't trade 20 of their older years to be 5 years young again.
So while my absolute life span may become lower, I'm living more of it now rather than later; Besides, who knows when you are going to die anyway, could even get hit by a bus tomorrow.
Also the abuse my body is going through, I doubt it will live to a ripe old age, I both smoke and drink and have cancer in my family history. I doubt I'll make it past 50 anyway.