Several posters have talked of keeping the bedroom cool, dark and quiet. Those things help me a lot. A trick I have been doing for many years is buying packages of the cheap rubber workplace earplugs, then cutting them almost in half with scissors and using the slightly longer outer portion of the plug. I find this makes putting them in far easier, they stay in and I can lay that ear on the pillow without the plug contacting my ear drum. (I also prefer to do this in really noisy places because they sit so much more securely in my ear and are far easier to push back in if needed. Yes, ultimately a little less help with very high noise levels when compared to properly inserted full plugs, but the worst abuses my ears have seen have been from those full plugs falling out or being poorly inserted. (I used to work as an engineer in a yard making very large steel barges. Sometimes very loud.)

Recently I've tried another trick. Sleeping with my feet up on a small pillow. I started doing this for an injury where keeping my legs up helps healing, then started noticing I was sleeping better feeling better after. It doesn't work all night. After a while the pillow has moved off to some far corner of the bed, but still it appears to help a lot. I am suspecting that as a cyclist, it is helping drainage and recovery in my legs and my whole body is saying "thank you". (And even the days I don't ride, I spend almost the entire day with my feet down, 2,3,4 feet below my heart. With no pillow, they are still below.)

Ben