No sleep on ground in Spring.
No sleep on ground in Summer.
No sleep on ground in Fall or Winter.
I noticed a pattern (it takes me a while).
Read Allen Leigh's article on camping in hammocks after finding the link posted by somebody somewhere (had not discovered the Yahoo group yet) - I think it might have been on a Troop website while researching Troop websites, being on the Council Web Committee. It cost me $25 to try it out, I never have tried to sleep on the ground again.
Probably wouldn't work if I did...