Can you get clips that close your ear shut without insertion of the canal?

I want to find something that will close my ears at night for a better night sleep but I dont want anything that fits into my ear, even in the outer part. I would like something comfortable that holds or clips the very back of the ear and the other side of the opening closed. This would also be ideal in the way that it could be reusable and wouldn't need to be thrown away. Thanks.