A month ago I had a hearing test and found that I've lost a fair amount of high frequency sensitivity in my right ear. I knew I had lost some hearing in general, but I hadn't noticed any problems within a specific range. A week later, a cricket made it into the apartment. It was keeping me awake and of course I couldn't find the bugger. I happened to roll over to my left side (I'm a right sider) and the cricket "shut up". It wasn't loud enough for my right ear to pick up. I fashioned an ear plug, stuck it in my left ear and had no more problem sleeping. The hearing isn't going to come back on its own so I might as well make it work to my advantage when I can.