The additional trough lets you rest your head quite comfortably. Premium reminiscence foam: So-referred to as memory foam, which all the time returns to its authentic position, is used within the manufacture. This prevents depressions from forming within the cushion. It helps one to all the time take the correct place. Easy to wash: Derila Contour Pillow The removable cowl makes it easy to scrub the cushion. Easy to take with you: The format makes it simple to take the Derila pillow with you, so you should utilize it on enterprise trips and vacations. How to use it? As a part of this overview of the [Derila Sleep Aid](http://users.atw.hu/raspberrypi/index.php?PHPSESSID=fcabffc3fadd2b211dab9f254c38429a&action=profile