I'm exactly the same. I'm in my 40's now but have always been this way; the big difference that age has brought me is that I'm less flexible about it. In coll

I'm exactly the same. I'm in my 40's now but have always been this way; the big difference that age has brought me is that I'm less flexible about it. In college I could get by with a few 3-4 hour nights in a row, as long as I made it up (and all of it) over the weekend, but now I can't carry a deficit nearly as well, so I don't.