How to set a profile that only allows selected calls through?

I work on the third shift, so I sleep during the day. But I get calls all day long, so I shut my ringer off. I would like to be able to allow a couple of phone numbers that can ring through no matter what. Using Google Voice to do this won't work because I get calls directly to my cell number as well as to Google Voice. How to set a profile that only allows selected calls through?