What is the opinion of Reddit about the
Cervical Sleeping Pillow for All Postures?

https://www.amazon.ca/Mkicesky-Sleeping-Orthopedic-Ergonomic-Pillowcase/dp/B08FJ9737F/ref=sr_1_7?crid=1BA46FV1PHGG0&keywords=Pillow&qid=1647671683&sprefix=pillow%2Caps%2C92&sr=8-7

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I’m unsure if this can help your case but I can’t sleep on my back and I use this pillow to sleep on my side. I wake up feeling okay, albeit some days a bit of jaw soreness in the morning. It has very square sides that can support my jaw. I sleep with my mouth open.