First off after waiting almost a month for delivery I called the company and discovered they'd attached my order to someone elses address, so it took a long while to receive it. I tried to return the topper as it was uncomfortable but was told it was past the return window by a week, I asked if they could make an exception seeing as they had screwed up and my order was extremely delayed, the guy said he would email his boss and get back to me and that was the last I heard from them. Now the mattress is giving me sciatica and my wife shoulder pain, we can not sleep on it anymore and have wasted $4000 on the bloody thing. One of my worst purchases ever and after reading the reviews it seems we are not the only people to experience this situation, the mattress creates pressure points and is deeply uncomfortable. Now I'm seeing a chiropractor to try and fix the sciatica this mattress caused. I deeply regret buying this expensive mistake.