Sleeping bag height question

Hey, hey! Rebuilding my stash to save weight, and am currently ready to spend on the bag. My top 1, at this time, looks like Nemo Disco (catchy name). I’m a side sleeper; the spoon promise sells. If I move forward here, how close should I be on the height? I am at max recommended height for a regular bag. Do I need more to suit my comfort addiction? I do not want my toes touching the bottom, too much (have neuropathy and it can get painful).

Also open to any other ideas before I pull this trigger. $300 is my max budget, but I could save for a few months. Appreciate any input…y’all saved me on the tent purchase, and I realize that there is much more knowledge out there than I know!