[oh_sigh]

Not that I know of. Maybe, if you jump from high enough that you pass out due to lack of oxygen, and you land in a manner that benefits from you being a ragdoll vs an actively bracing person, then it could help, but that seems unlikely(you'd probably also wake back up before you hit the ground, as I've heard stories about this happening to WWII pilots).

But overall, I believe it is better to be conscious. If you are falling from 3 miles up, you can glide to maybe 1 mile in any direction. This gives you the chance to try to land in a snow drift, in some mud, maybe a hay bail, or even a thick shrubbery, etc.

[basicplus2]

First you must find... another shrubbery! Then, when you have found the shrubbery, you must place it here, beside this shrubbery, only slightly higher so you get a two layer effect with a little path running down the middle. ("A path! A path!") Then, you must cut down the mightiest tree in the forrest... with... a herring!