Is there any way to wire the light of a combo bath fan on a 3-way switch, but still have the fan on just one switch? I just put a pocket door between my bathroom and bedroom, and I need a switch in the bedroom that turns on the light in the bathroom, so I don't have to walk across the bathroom in the dark to turn on the light. I currently have the light on a dimmer switch and the fan on a timer switch. Thanks for any input.

Yes, you simply replace the existing light switch with a 3-way switch, run 3-wire cable to the second switch location.

Or use a switch like this. No need to run the wiring.