Oh, I've definitely been sore after a tough ride, the same delayed onset muscle soreness as I get after any unaccustomed exertion whether it's running, weight lifting, heavy gardening or whatever.

How often are you riding that far? What kind of rides are you doing in between? Have the rides that have made you sore been hillier or windier than you're used to?

I get wound up by anything I do near bedtime, whether it's exertion or something sedentary like a concert or movie. Reading (NOT in bed!!) is one thing that helps me wind down ... on the internet doesn't count, because the backlighting keeps you from producing melatonin that signals to your body that you're ready for sleep.