Well you have gotten some excellent replies, but one thing that will make it easier to answer this question is where you are hunting and when? Depending on the terrain and time of year deer will bed in different areas, some areas the most important thing to a deer for bedding is to be out of the wind and to be able to see long distances, in other areas the most important thing is thick cover. Most of the places I hunt it is as others have said thick cover, the thicker the better, however that does not always hold true, this one big buck Ihave been trying to stick for several years now beds in the middle of a posted overgrown field, there is absolutley no way to get close enough to him during shooting hours to stick him!