One of my unresolved issues is sleep apnea. Though it's classified as moderate to severe my oxygen level stays relatively high so that it doesn't affect my heart. I just don't sleep deeply. It seems pretty clear from various sleep studies that much of it is positional - that is I sleep much better on my side. I've tried CPAP and really struggled with it and I am not sure that it helped anyway. I recently tried a make shift dental appliance and it didn't appear to work. So now I am looking at pillows or other devices that help you sleep on your side. Has anybody else been through this? Can you recommend anything?