I don't have a bedside nightstand but I do have a shallow shelf over my bed where I have sleep meds, paracetamol, wireless earphones, a roll of TP, microfiber cloth and and also put my glasses and snus can there when I go to bed.
I had/have a similar setup. My one cat I've had for years never knocks anything down but now I also have a kitten and he occasionally feels the need to clear that ledge off. Typically when I'm in bed. It is kind of funny just hearing the pill bottles slide for a bit then fall out of nowhere.
I don't keep very much up there now. Only stuff he shows very little interest in pushing over.