Mosquitoes and sand fleas eat me alive every year. Last year I came prepared. Citronella spray over my sunscreen during the day, spray with deet in the early morning and during sunset on the beach. I didn't sleep with bug spray on my skin, consequently I did get bitten, but only 3 or four bites, compared to the 30 bites per leg that I usually get. We sleep with the overhead fan blowing on us, and tried spraying the room with bug spray before we went out for dinner, but it didn't help much. Any suggestions on how to keep from being bitten while sleeping?