Thank you for your question and for being part of our community. Have you considered that your pillow might be the problem? Personally I have experienced neck and shoulder pain because of my pillow. I found when I started using CPAP, I had to switch to a firmer pillow as I tend to sleep on my back with the mask. Sharing an article about choosing the right kind of pillows that you might find helpful: https://sleepapnea.sleep-disorders.net/living/pillow-choices. Warmly, Vashanti (Community Advocate and Team Member)