I've always preferred colder temperatures anyway, but now my aging hormones have brought more challenges during the summer. We can't run the air conditioning to the degree I'd like to because it's just financially and environmentally stupid. My neighbor also recently had to cull a large shade tree that provided a lot of shade on my side of the house. I'm looking for inexpensive ideas to keep my room cooler; things like window film, using wool mattress pads and pillows to vent more body heat, etc. Have any of you been successful with things that helped keep you sleep cooler during warm weather?