I don't claim to know about "stress shootings". If either of you have experience with this I will gladly take that into consideration. I have always felt that if I am using my nightstand gun, other than practice, I probably won't even have time to acquire a good site picture anyway. In my home this would be from a distance inside of 10 yrds and I will be much more distracted by the deadly threat than my cover plate.
If you're worried about ever being in a live fire situation inside your home I would suggest purchasing a lasersight the one I would recommend would be Crimson trace as they can be installed by yourself and come perfectly sighted to 20-25 feet however even if you're shooting 30 to 50 feet your shot won't be off by more than an inch and a half... and the main advantage to a Crimson trace lasersight is the activation button is on the back of the handle so as soon as you grip the gun it activates the laser which will give you the extra second or two that you would normally need to take aim; which in a "shootout" scenario could mean the difference between life and death... and in case you're wondering I speak from personal experience.
Thanks for the post Jedi. I have a small laserlyte mounted on the rail. I do find it is not as easy to turn on as I would have hoped because the buttons are so small. I usually end up using my support hand thumb to activate when I practice. I hope I never need to put that red dot one someone but I feel it could be very useful if needed.