Smelly Sweat Stained mattress

My teen son’s mattress is the major source of the smell in his room. Is there a practical way to deep clean the set in sweat stains ?

The thing is the only way to get rid of the smell is to deep clean the mattress and let it dry but it’s not that practical imo because he would literally have to sleep somewhere else for a few days depending how long it would take to dry out. I mean, we can do that. Sure. But, I would only want to go through all the effort of cleaning it, if it works out lol

Otherwise, I am strongly considering throwing the whole mattress out.

Any serious advice, cleaning tips are welcome. Also, do you think it’s even worth cleaning or should I just throw it out ?

Much appreciated :)