Perhaps it will be useful to have an air quality meter and see what it says about the quality of air in your bedroom when you sleep. The one I used is "IQAir Ai

Perhaps it will be useful to have an air quality meter and see what it says about the quality of air in your bedroom when you sleep. The one I used is "IQAir AirVisual Pro" and it helped me identify and fix some problems which helped me wake up feeling healthier than before fixing those issues.