The spikes help stimulate the release of natural pain-relieving hormones, according to the manufacturer. (Gary Friedman / Los Angeles Times)
A close-up of the spikes. (Gary Friedman / Los Angeles Times)
Snoring problems? The Sona pillow can help with that, its makers say. (Kirk McKoy / Los Angeles Times)
This pillow is said to help side-sleepers reduce the chance of facial wrinkles. (Gary Friedman / Los Angeles Times)
