I keep my double barrel with buckshot in the kitchen, since I would most likely encounter an outdoor threat trying to come in from that way, so I could use the spread of the buck.
In my bedroom, at the end of a long hall, I keep my .45 and AK. Try to advance down the hall, and you'll meet hot lead in high power form.
Plus I've got a 60lb pit bull that loves me dearly. Bring it on ding dong.
My point is there is never a catch all solution to a complex problem like personal security.
The road to hell is paved with good intentions