***********BUYER BEWARE*************READ THE FINE PRINT**************I ordered and received 34 mattresses and 15 mattress toppers from Zinus (through Amazon) in September 2020. I am a business owner. I own vacation rental units that I furnish. Out of the 49 Zinus items I purchased ONLY 20% were in good enough condition to be used. Of the 20% that expanded to their original size and look good they are horribly firm and uncomfortable.PLEASE read all the fine print before purchasing the Zinus mattresses and mattress toppers! On the main purchasing page of Amazon this is the verbiage.• Expertly packaged- Our technology allows this mattress to be efficiently compressed into one box that is easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress do the rest, expanding to its original shape within 72 hours.Which I understood it meant “once you open the mattress it takes 72 hours for it to expand to its maximum shape”. That is not the case!!IF you happen to find the teeny tiny little link labeled “Installation Manual” really far down the page it states…“Please remove from packaging within 72 hours of receipt to make sure your mattress can grow to its full potential.”We had many construction delays, and the mattresses did stay boxed up for a couple of months in a storage unit while we waited for the units to be complete. If Zinus would have properly disclosed the mattress requirements better, I would have definitely figured something else out and not left them boxed up. You would think that if it is a matter of 3 days that makes a mattress usable or unusable it would be WELL published.I have spent HOURS on the phone with Amazon who stated they could not do anything, and I needed to contact Zinus. I then have spent countless hours on the phone with Zinus which got me nowhere other than a customer service email. I sent many emails to Zinus customer service since 12/23/2020 with pictures of all mattresses and toppers.They have emailed me back, but each response takes days. They kept escalating the claim up the management ladder. I have requested a replacement for all the defective mattresses. I initially did not want a refund I just wanted mattresses I could use. At one point they told me they would replace them. Then many days later they said they did not have enough in stock to replace them. I find this odd that they do not have at least 11 King size mattresses in stock at any given time.When I told them, I cannot wait for months on end to receive my replacements, since they are for a business and I need to start renting it out, they told me they would send me a “prorated” refund. I am not sure why it would be prorated since I was still within the 100-night trial period. But either way I have received nothing! They told me they would send me a refund and the “refund department” would be getting a hold of me to set it up and I have heard NOTHING. I have emailed them numerous times to each person I dealt with along the way and none of them have responded to me in the last 16 days.So as far as I am concerned Zinus has an 80% terrible product and their customer service wasted my time, and I did not receive reimbursement or replacement for my unusable products. I have purchased replacement mattresses from another company since I cannot wait any longer.I definitely DO NOT recommend Zinus or any of their products and I will never purchase from them again. I will be getting the word out as well to the many other rental owners I network with and letting them know of my experience. The pictures I have included are the mattresses and mattress toppers that had been unboxed for 3-4 weeks. That is all they expanded.