Deep horizontal lines on cheek bones below both the eyes. Could they be caused by sleeping on the sides? (Photo)

Thank you for your question and photos.First, I doubt that your problem is caused or can be resolved by your sleeping position. Additionally, as you mentioned your mother has these too. This is likely a hereditary issue and there is nothing you have done to make them appear or worsen. I would recommend a consultation with a board certified plastic surgeon to discuss the treatment options. Often in patients your age minimally invasive treatments, such as fillers can help mask the problem.Best Regards,Dr. Stutman