I used to use a contoured orthopaedic pillow but, if I remember correctly, started to find it uncomfortable - perhaps it had become misshapen. So, for the past year or so I had returned to conventional pillows.
Until last night.
Fed up with not being able to get comfortable I switched back to the orthopaedic pillow and had the best, most settled night's sleep for weeks, if not months.
I still think the pillow is a bit squashed as it seems lower and flatter than I recall so maybe I'll just get a new one.
It's amazing how everything seems so much better after not waking five times in the night.