I have tried several pillows over the last few years – all with mixed results. My head and neck get quite warm when sleeping and regular pillows trap heat exceptionally well, unfortunately. I’ve tried cooling pillows, but those only work so long. Heard about Hullo pillow on a podcast for several weeks in a row, so did a little investigating and eventually bought the small one – hoping to keep from having to share with my cats (they just ended up either pushing my head off most of the pillow or sleeping on my face). It seems unsubstantial until you put force on it, then it becomes quite firm, which I rather liked. Molds very easily to shape of your head or face. Does get a little bit warm and retains some heat, but not enough to make it necessary to flip the pillow halfway through the night. It is rather comfortable to sleep on, though on occasion I do wake up with neck pain, so I’m debating taking some of the hulls out to see if that eliminates that as the pillow can feel a little raised.
My husband “borrowed” my pillow for a nap the other day and now is threatening to steal mine or buy his own.