I've heard the mini tramp is the best thing for lymph drainage actually from a health professional. He uses one everyday.

I started sleeping with an incline. My brother told me about a NASA study where it helped or cured most people's headaches sleeping at a 30 degree incline.

I'm lucky my parents have a type of bed that does that, but there probably are ways around doing it with a normal bed. Blocks underneath? Be smart about that though.