Joanna, I've always been  aperson who needs a lot of sleep, but like many other healthy things, I talked myself out of it.  When I had to go on a C-pap machine (don't need it now), I quickly saw what a huge difference it made in my life to get sleep!  My headaches went away, I started to lose weight, my mind was clear and I was over all much happier.  Since then I've just made it a point to keep up the hours needed and when those sleepless night come along, they remind me why I'm so careful to protect my sleeping time!  Sleep, like many other self-care things for me has become addicting!  I enjoy feeling good now and I will do what I need to (and I have a list of things!) in order to feel that way!