This is a keeper!
Bought for my wife who has L4/L5 problems. The cushion is very substantial and surprisingly heavy. Appears to be a high quality product. Don't understand why the mattress has a 10 year warranty and other of Purple's products haev a 1 year warranty.<br /><br />The cushion has helped my wife on kitchen (hard) and dining room (soft) chairs. And in the passenger seat of the car. I have tried it while driving - it's comfortable but my head touches the car ceiling. I have used it as a pillow and slept very well. I suspect others may find it a little hard for sleeping, but it's fine for me.<br /><br />It is still off-gasing a chemical smell after about a week. The off-gasing is a major reason to deter us from buying the mattress.
Rating: 4 stars