As I continue to work on my TMS via journaling and reading (Sarno, Schubiner, etc.), I am still having grave difficulty sleeping. Due to back pain (fractured vertebra), I can only sleep on my sides, but after a while the shoulders (one of which has a 65% tear of the supraspinatus tendon and the other has already been operated on) get sore and some nights only allow a couple hours of sleep. Quite often I wake up with massive pain in both shoulders. Any recommendations on mattresses that would put less pressure on my shoulders? I am looking into the "Wave Mattress" by Casper as well as a Sleep Number mattress. Thank you (in advance)!