Pick The Perfect Pillow

"Sleep away neck aches with these tips...
For side sleepers. A firmer pillow is a better bet than
a softer one. For maximum comfort, a pillow should keep
your neck aligned with your spine. To support the neck,
the lower edge of your pillow should rest between your chin
and shoulder.
For back sleepers. A softer pillow gives you better support
than a firmer one.
For stomach sleepers. Use a thin, soft pillow so your head is
level with your chest. You may want to try alternate positions;
sleeping on your stomach can put strain on your neck by causing
you to turn your head to the side too much."

-UC Berkeley Wellness Letter, Healthy Living Magazine, Fall 2011