Non-slip is a Misnomer
The suction cups clearly don't seem positioned to provide the promised "non-slip" feature. I am lucky if I get one (out of 7) to stick even for a short time. The pillow is nicely padded and comfortable if I manage to  maneuver it into position.  Frankly, I would return it but unfortunately have thrown away all of the packaging.
Rating: 2 stars