Some of us have a preferred "night stand shooter", at the ready, which is our tool of choice in the case of an emergency. there are special holster used on the bedside which allow for a quick draw. But that is not the case with everyone else. Some of us literally lay our gun over a night stand at hands reach, in my case there are two of them,on each side of the bed.
We find that laying a couple of pieces of phosphorescent self adhesive on the bottom of the magazine, helps you locate your weapon in a moment of excitement.
Why two pieces? Two is better than one, two indicate a direction, a vector.
Say , you could use the same technique on your light switches indicating the direction of the swipe needed to get that light on.
Please notice also both pieces are not the same size, indicating this way the direction of the barrel
You don't need to do on all mags, just that specific one, once you grab the gun, if you use your weak hand "saucer style", the self adhesive is covered so, this way it won't compromise your position.
The argument can be made by seasoned experts in the matter, that this enhancement is unnecessary, having practiced and honed that specific skill, unfortunately, that is not everyone, me included.
When life is at risk every bit helps.