I am not sure if or what I might have contributed to the other thread on gunvaults, but I wil tell you that I have come to a moral decision against using that specific product.
I have watched their people at several trade shows and they constantly use Scare Tactics to try to intimidate people into using their product. Also, I have heard one highly placed person in their company allude to future regulation that might make products like theirs necessary. The implication was, "buy them now, before the price gouging starts."
At this point, I hold them one step about that locking magazine company whose main marketing tactic seems to be to get legislation passed supporting the use of their product.
Other than the ethical issues, I think the Gunvault is perfect for the bedside situation that you descirbe.