^I am what you call a "toss and turn' kind of sleeper. There was a time, when i worked at the sawmill pulling lumber on the green chain (long side), that i had to sleep on my back with my hands over my head so that the wouldn't fall asleep in the middle of the night.
I doubt anyone here has EVER pulled green lumber over 14 foot for 8+ hours a day? And 30+% of the time, i'm not talking about 2x4's