My husband and I moved to Boston July last year (2015) and we bought a new mattress on Sleepys the Mattress Professionals (*** ************** ***, Cambridge) on August. My husband is doing his PhD in Physics at MIT and has herniated disc (which was under control since we do exercise constantly and before coming here his last acute pain was 2 years ago, when he detected it). We bought a firm mattress (Serta Firm) as it was more appropriate for him, and it costed 800 dollars but the vendor did a discount and it cost 600 dollars, with a 1-year warranty. However, 3 months ago the mattress started sagging, and the mattress that was initially firm is now completely soft (the springs gave way and are sagging with the applied weight). We called them and they sent a kit for self-inspection from Mattress Marshals, we inspected it and they replied that the mattress was OK. According to the call center we spoke later on, the sag had to be at least 1.5 inch deep to be considered as nonstandard. Our mattress is only 9 months old, and any sagging in this small time period should already be considered nonstandard! A mattress that could sag 1.5 inch in 9 months shouldnu2019t be on sale under any circumstances. Also, this inspection is exclusively superficial and does not disclose problems in the inner bed frame (such as the springs) which could be easily verified by applying some pressure on the bed. Lastly, when we were doing the inspection, we had to remove the mattress from the frame to take pictures of the frame and we put the mattress against the wall. At that time, the mattress bended into a U shape due to its own weight. This reveals the poor quality of this mattress, since it canu2019t even support its own weight on the vertical. My husband is having acute back pains again, and he already did more than 1 month of physiotherapy and has been to the doctors 3 times! The situation was so bad that he started sleeping on the floor and it relieved the pain. This shows that his back pain is actually related to the poor quality of the bed. Finally, I had a friend staying over this week, and after one night sleeping on the bed she told me that the mattress was so irregular close to the edges that she almost fell from it during the night. We called there twice and last time (today at 9 am) the attendant Mayda laughed at us in the end! We were asking for a new mattress or a total refund, and their best offer was a discount on a new mattress, and they didnu2019t even specify the amount of discount they would give us. We spent an immense amount of time, energy and money on this matter, and the mattress is still covered by its warranty (imagine if it wasnu2019t). Now, we donu2019t want a bed from Sleepys ever again, we want at least our full money back.