100 nights or your money back. After two days we didn’t like the mattress. Emailed support and told them we weren’t happy with it. The next day 1800 Junk truck came out and trashed the mattress. So essentially their returned mattresses go into the landfill and become waste if you’re not happy with it.
I bought a cushion for my desk chair from Amazon and it turned out to be garbage so I tried to return it. They said they could only give me a refund if I sent them a picture of the cut up cushion. I didn't have to send it back, just send a picture of it with a big gash down the middle.
I guess, at least with 1800 Junk there is a good chance a employee will pluck the mattress out and put it up on Craigslist.