For many people, bedtime no longer begins when the lights go out. It may start with one last text, a few minutes of scrolling, an episode of a favorite show, or checking tomorrow's schedule on a phone. These small habits can become part of the nightly routine without much thought. At the same time, physical comfort remains an important part of getting ready for sleep. For people who naturally sleep on their side, the pillow can be one element of a more comfortable and consist