Mosquito nets come in a variety of shapes and sizes, but the rule of thumb is to make sure that they are hung tautly enough so there are no droops or sags in the mesh. You’ll also want to make sure that there aren’t any dangling piles of material that could be stepped on or snagged. Once you’ve hung it up, the best practice is to ensure that no mosquitos can penetrate the bottom seam, either — usually by tucking it under your sleeping bag or mattress.