I bought a California king from Zinus, they sent me two of them, and didn’t want the second one back. I paid less than 300, and now my parents have a free mattress too. One gripe was the lack of warnings on the box. I accidentally punctured the plastic trying to drag the package into my bedroom and one puncture was like a deploy mechanism that left me trapped in a door way as the mattress slowly inflated on me. We laughed about it, but I’m a large man, I can only imagine how a small person or child would have dealt with that situation.