I spend a lot of time sitting, and after giving my last coccyx cushion to my stepdad, I was missing having one. I tried one other one after the 1st and I kept sliding off of it, so I’m happy to have found this one. I’m able to use this cushion for an extended period of time comfortably. After a couple of days, I stopped noticing that it was even there, however my back pain continues to lessen. I’m very happy that I got this, as I spend the majority of my day in front of my computer and can’t stand how much pain sometimes occurs from being so… stagnant. I definitely recommend this to all of my fellow office workers out there.