This is the Pillow Cube Sidekick Designed by side sleepers for side sleepers, every part of this amazing pillow is crafted to give you the best sleep experience of your life. The cube shape perfectly supports your head and neck and aligns your spine. *this like brand new. I used twice, but just wasn’t a fan. Maybe you will be? I used it with a regular pillow case on and then washed the removable zipper case. Standard size for people 6’3 or shorter.