RE-posted this as my original post was looking for a "fy screen" by accident!
My little girl (18months) sleeps much better with a window open but the problem is that our garden is quite mature so despite having blackout blinds and curtains there are always wasps, flys and other flying insects getting into her bedroom. Apart from the fact that they buzz and wake her up, I have a wasp/bee sting allergy and I'm concerned she might have inherited it from me - fortunately haven't had the opportunity to find out yet!
Can anyone reccommend a flyscreen of some sort, so the air gets in but the bugs stay out?