Same for me, minus the weight. I hate weight on me when I'm sleeping. Makes me feel trapped and claustrophobic. I use the thinnest blanket the temperature will allow, and I always have fans (and if possible an AC) going. Anything above 63f/17c and I sweat like a pig. :(
Does the chillpad work? I've heard mixed reviews.
I did very well when I visited Mexico for this reason. The amount of dudes just totally cool with topping was excessive. Guys who are, by their own cultural standards, completely straight hanging out of grindr. It was a glorious week.