What is the necessity of a pillow that will allow a customer to sleep on their side? Is it a different pillow than one that is designed to allow people to sleep on their stomachs? Ideally, the pillow will be designed to fit people who sleep in all three positions. But the point of this article is to review the best pillows that are designed to allow people to sleep on their sides. You know for medical reasons people cannot sleep on their backs or their stomachs. In other words, they have to sleep on their sides. They will need a pillow that will be flat enough to allow their head to sink into the bed as their body does. Or if this is not the case, then they need a pillow that is high enough and firm enough to allow their head to stay on top of the pillow and not sink into the pillow as their body sinks into the bed. This could cause misalignment of the spine, back, and the neck. The choosing of a pillow that allows a person to sleep on their side is no joking matter. It may seem petty and trifle but it really is not.