With the Dullo Neck Relief Pillow, it doesn’t matter which position you sleep in. Unlike traditional pillows, the Dullo helps back, side, and tummy sleepers get a great night’s sleep, too. This ergonomic pillow has arches around the edge with a crater hole in the middle. The ergonomic arched support tubes keep your neck in its natural position. The central crater hole cradles your head, distributing its weight no matter what sleeping position you’re in. Additionally, this pillow has air ventilation, so it will keep you nice and cool while you sleep. And the microfiber filling provides a cushioned, yet firm sleeping experience. Because this microfiber pillow comes in three sizes, it can accommodate different neck lengths. Furthermore, this ergonomic pillow has a zipper to unfold it in case you want your pillow to be shorter.