Well, technically not ON my bed, but extremely close. I don't have a bedframe/headboard or anything like that.
Between my bed and the wall is my hunting rifle case with my 30-30 in it (so if things REALLY go south...lol) and on top of that is a phone book or something to make a flat spot and that is where my bed gun is. It's just slightly above and to the right of my pillow, but also out of sight unless you are in the bed.
I also have a small flashlight up there, a few other items and usually throw my ipod up there too - but they are all kept towards the center of the bed away from the gun. I sleep with my phone actually in the bed (someday I might get brain cancer or something from those electornic waves....)
In the other room my .22 and Maglight are mounted on the wall for varmit huntin (livestock protection)
None of my kids have opposable thumbs ;)