Sleep is something you should take seriously. After all, doctors recommend we spend roughly one-third of our lives doing it! We all spend a lot of time in bed, with our head on a pillow, so you’d better make sure you rest your head on a pillow you absolutely love. Memory foam has become one of the popular materials for pillows and with good reason. You can get it in a wide range of firmness and softness levels, and they come in all kinds of shapes and sizes. But there are ton of other features you should also consider. Here are just a few.