In reply to captainfire576:
I don't get it why it should be illegal anywhere in the world as long as you leave no traces, do that discretely and do no harm for wildlife/plants/ecosystem/etc.. I have been sleeping in a sheepyard, bus station, many times near the road, some hundred yards away from the border (non-Schengen), next to the footpaths, next to someone house's fence, 50 yards away from the gas station on a poncho as I lost a tent, etc... The worst (!) what happened was when soldiers with rifles were doing a challenge in Glenshee and I was sleeping next to their path. I was probably still in underwear when they asked me if that was the checkpoint. I was puzzled after a cold and shivery night, but it turned out to be completely okay.
Next to the road in Slovakia:
http://i.imgur.com/LZsfkm5.jpg
Next to the road/path in WHW:
http://i.imgur.com/HPLYyZ3.jpg
Next to the Bridge of Orchy:
http://i.imgur.com/HPLYyZ3.jpg
I am quite disappointed that I do not have any photos which would make me think I am crazy...