For the past six months or so, I haven't been sleeping well. No matter how late I went to bed, and no matter how tired I knew I was, it wasn't easy falling asleep - I felt too wide awake. And then no matter how many hours I "slept," as soon as I got up I was already thinking about a nap.
I live in Florida and we don't really have cycling seasons here. We bike year round and we can race year round. I've been training hard for four years now, without a real break (except for a few recoveries from crashes). So I decided to make this January a "vacation" month: easy rides on the bike, no real hard stuff, many days off.
And now my normal sleep patterns have returned. When I go to bed I can hardly keep my eyes open to read for a few minutes, and when I get up in the morning I feel recharged and ready to go.
I certainly have read that overtraining can interfere with sleep, but it's one of those things I couldn't relate to and maybe didn't quite believe. Well, now I believe!