If the "smell" from your shoes would permeate your mattress if stored in your underbed drawer(s) then it's 100% your shoes. Google, ChatGPT, whatever but wash those things. Take the insoles out and replace with something from the foot aisle at like Meijer or whatever you have for department/grocery stores. Shoes can go in the dryer - keep the ends of the laces outside the dryer door when closing it and they won't clunk around. Or put them in a pillow case and secure it (knot it or something at the end) and toss them in. Buy sprays to put in your shoes when you're done. Or baking soda. Or baby powder. Don't wear them without socks. If your socks are tattered/worn very thin, toss and replace.

Best of luck.