April 17, 2018
Consider your mattress’ firmness or softness
If you have a firmer mattress, you’ll need a thicker pillow, because your shoulder won’t sink into the mattress very much. “The pillow will need to fill a larger gap between your head and your mattress,” says Dr. Bang.
If you have a memory foam mattress topper or a pillow-top mattress, you’ll need a thinner pillow, because your shoulder will sink into the bed. “The pillow will need to fill a smaller space between your shoulder and your head,” he says.