So I decided to invest in a new pillow because of my ongoing neck problems. Last night as soon as my head hit the pillow I had a major hissing episode similiar to ones I'd had a couple years back when this this all started. Thankfully it settled down and although the pillow made me feel super relaxed, I still woke up very groggy. Should I give it a few more days? I'm desperate for a good night sleep!!!!