Resting Whinge

Lately I've been resting a lot more and these rests often turn into afternoon naps that last about an hour.  This seems like a really good idea except I seem to be waking up more tired than I was.  However, today I didn't fall asleep but my second rest lasted over half an hour.  Yet when I woke up my M.E. was much worse than it had been when I'd been doing things.  I was always told to rest before you need it but this seems to be detrimental for me.  I don't really know what to do.  I don't want to let myself burn out before resting but nor do I want to make my M.E. worse by resting too much.  I seem to have reached a point where neither works and I'm in a never ending doomed circle.  Sorry to be a little depressing but the amount I haven't been able to is beginning to get me down.  I guess I'll just have to keep trying slightly different things to see what effect they have and see if I can find something that will actually help rather than hinder.