I was having extreme hip and back issues with my last mattress.  It was old and I knew I needed a new one.  I visited stores, I laid on some but I just wasn't overly excited to purchase.  I searched and searched Wayfair, added what I liked to my cart so I could narrow down.  I kept coming back to this mattress.  Price was exactly what I wanted (Original price to sale price was over the top) and reading the reviews seemed like this is what I wanted.  I only purchased knowing that the 100 night warranty was there.  I've now had the mattress 2 weeks and I couldn't be happier with it.  While it was heavy to get inside by myself, I opened it and let it expand for half a day before I slept on it.  After the first night, I knew that this was exactly what I needed.  NO pain the next morning.  YAY!