I've been pushing it this last week just to see how to plan the next couple of months training. i haven't pushed it too hard, about 20% above what i'd normally do and i find my sleeping pattern is gone haywire this week. i am terribly tired but once i go to bed i can't sleep or else i wake up really early and stuff. anyway, i took yesterday and i'm taking today off for a bit of r&r.
is it a common feature of pushing it bit harder than normal to loose some sleep?