it's the little sweat flies and mosquitos that bug me - setting the tent up during daylight and making sure the netting is zipped shut has solved that problem for me. The other thing is once is dusk or past I do not enter or exit the tent with the light on. in other wordds - the netting is unsealed ONLY during full daylight or in unrelieved darkness. it only takes those beggers a second or two to get in!