Back sleepers, side sleepers
This may have been obvious from day one, but despite the basic geometry of our necks it took me many years to figure out that back sleepers generally need just the one pillow and side sleepers are better off with two. Still think the pillow industry could do with a shake up though to solve basic problems like not falling into the gap between pillows, pillows made for two or pillows that more flexibly adjust as you turn over.
Published