Does this mean that unconscious creatures do not attempt saving throws against spells? For example, does this mean that an attempt to scry a sleeping creature always succeeds?From the SRD:
Some spells restrict you to willing targets only. Declaring yourself as a willing target is something that can be done at any time (even if you’re flat-footed or it isn’t your turn). Unconscious creatures are automatically considered willing, but a character who is conscious but immobile or helpless (such as one who is bound, cowering, grappling, paralyzed, pinned, or stunned) is not automatically willing.