I've read a few times that sleeping on your left is best, as the heart is on that side, and your lymph flows from left to right. Lying on the left sends the blood straight to your heart, keeps your circulation and lymph flowing while you sleep.
Oh yeah. And comfortable ear plugs
"I think the basic anti-aging diet is also the best diet for prevention and treatment of diabetes, scleroderma, and the various "connective tissue diseases." This would emphasize high protein, low unsaturated fats, low iron, and high antioxidant consumption, with a moderate or low starch consumption.
In practice, this means that a major part of the diet should be milk, cheese, eggs, shellfish, fruits and coconut oil, with vitamin E and salt as the safest supplements."
- Ray Peat