Summer is coming! If you're too cheap for air conditioning and too stubborn to sleep with no sheets and a fan on, I have a solution for your very particular problem: the BedFan. It's a fan that blows cool air up under your sheets, keeping you chilly all night.
Personally, I think I'd hate this. I like my bedroom to be cold, but I like that because then I can keep warm and cozy in my sheets. If I put cold air under my sheets, I'll just be cold with no way to get warm. That doesn't sound all too comfortable, does it? I'll stick with an air conditioner, thanks.