After researching all the cpap pillows, I decided on the SleePap pillow. So far I am very happy with it. I am a side sleeper with obstructive sleep apnea and use the Resmed nasal pillow. The pillow is not very thick, but I like the fact that I can sleep with another pillow underneath and kind of move this one around. It is very comfortable and I would recommend to anyone that uses a cpap. Anything to help to make us more comfortable!!