In the spring, it is out turkey hunting in the Black Hills. Nice south facing slope on a cool day with a slight breeze.
During September, it is always while out chasing elk in the mountains. Best is always after a morning of vocalizations, then getting woke up by a midday bugle. Golden aspen trees are always a bonus.
For some reason, I usually cannot sleep too well while deer hunting, but have been known to rest my eyes in November while tucked in a ground blind or hunkered up by a tree on some ridge. I hate heights, and have never been able to sleep while off the ground in a stand.