I'm sorry if this has been asked before, I couldn't not find it through my potentially bad searching: We got our first egg yesterday which was incredibly exciting. It was also in the nesting box and not the floor which is even more exciting! We have about 2 inch of bedding in the box but they had still kicked enough around for them to lay it on the floor of the box. We have about a 1 inch lip on the nest and the material all stayed in the box nicely still. My question is this: how deep should the bedding be and how tall can the lip on the nesting box be in order to keep that bedding in?