I'm 31, in relatively good shape, but whenever I sleep in my tent, my arms continuously fall asleep during the night, especially when sleeping on my back (I'm a back sleeper). It is extremely hard to get a good night's sleep because of this, even though I'm in a sleeping bag that's on top of a sleeping pad. I can elevate my arms with my pack items and it gets somewhat better, but that's rather hard to maintain during the night. Anyone else ever have this problem? I have no problem at home in my bed. Probably am going to try out a hammock but am interested in what folks here have experienced.