I put a large mozzie net over our son's cot. It was a hoop type (with no hoop in it) hung off the wall and draped over the cot. It tucked right under on the floor so I'm sure it would have kept bugs out. I was using it to keep the cat out but that didn't really work because she loved to play with the bottom of it and her bell would wake him up! So she got booted outside for sleep times and I didn't use the net much.

I'd say you should be fine to use it this summer as it takes a while before baby can grab anything anyway, then maybe you'll need to reassess next summer.