Record what position you wake up in each morning.
Lie down on your bed naturally when you go to sleep and make a note of what position you naturally take. People may lay down on their sides, on their stomachs or their backs.
Choose a pillow’s firmness based on your sleeping position. If necessary, ask a partner who sleeps with you to tell you which position you normally sleep in. Stomach sleepers do well with soft, very flat pillows, while back sleepers benefit from pillows with a medium grade of firmness, which is a standard designation for pillows. Side sleepers may do well with both very firm pillows and pillows with a medium grade of firmness.