If you’ve been using the same pillow for more than two years, it’s old. Shocking, we know, but according to the National Sleep Foundation, we should be replacing our pillows every one to two years.

PHILADELPHIA (WPVI) -- If you're tossing and turning at night, the culprit could be your pillow. "With a pillow, you don't want your head to tilt too far forward or too far back. Sometimes you may ...