Been there, done that, long before LRH.com existed.
The ol' body seems to be having a tough time adjusting to it's new configuration. I sleep an hour and waken thinking I've slept all night.
Did that last night. . . again.
Seemed to recover well though. Shot a 0.75 moa group on the gong @ 817 yds during strong, but consistent winds. Shooter was spot on.
Also just got up from a 3 hour nap.