I find that a combination of an hammock (no roots or rocks to wake me when I fall off the pad in the middle of the night; no way to cause a gap with my underquilt to make me cold; nice and cool underneath me through convection on hot nights so's I'm not sweltering in a tent with no airflow as I hide from the flying hypodermic needles) and doing something all day long (hiking, biking, swimming, etc.) puts me to sleep like a baby.
I don't tend to sleep as long as I do at home (I can sleep for ten or twelve hours, given the chance, in my bed; out in the woods, I usually wake at dawn), but I go to bed earlier and sleep better (feeling more rested when I wake). I don't know if it's due to the hammock, the exercise (might be, but I occasionally do that at home, too, and haven't noticed a difference), or the "fresh" air (try FL in August; it ain't all that cool and crisp), but the woods help me sleep better.
It may work for you; it may not. Either way, an hammock can be had for ~$40 or so and is worth a try in my opinion. As to the "all-day PT" thing, well, that's a little harder to do...but it's worth it, and not just for the sleep.