Hi Ed,
Oh, were you and Ian debating that people really see the deceased? I thought you were arguing whether or not they report seeing the deceased (in significant numbers). The latter is, imo, well and widely documented. Hopefully you will access Ian's journal reference (or write Moody for his) and verify that to your satisfaction.
As for hallucinations...no, I've never had one though I've had other reactions to sleep deprivation.
Interestingly, I've been reading about Eusapia Palladino and the scientists who studied her. Some of them reported observing phenomena that, once tricks are ruled out, you would probably call hallucinations. And they may have been....but then there needs to be some documentation and explanation of that claim, too, don't you think?
Same with widows. Seeing the deceased does not apparently follow a wide pattern of sleep deprivation. There may be other, quite rational, explanations for it, but from what I've read, I don't think sleep deprivation's one of them.....