I see I am not alone in the 'sleepless in bed' routine. I will be sleepy, yawning, ready for some zzzzz's and then in bed I am wide awake looking at the ceiling. Eventually, I give up, get up, browse around on the computer until it is generally around 1:00 a.m. It is really a drag on the body too. I wish I had a solution - would gladly share with all.
