The ReST bed is by far the most comfortable bed I have ever slept in. I like my side firm, the missus likes her side soft. This is the perfect compromise, the queen size bed, as each side is configured separately. After 20+ years in the military my back is wrecked and, I have woken up with back pain every day since I can remember on a traditional mattress. We purchased the ReST bed and after a week of adjusting settings I have not woken up to back pain since. I also have issues with my arms/hands falling asleep and that doesn’t happen anywhere near as often. I am a stomach/side sleeper and the wife is a back and side sleeper. This bed works for both! I couldn’t be happier with the bed itself, its features and functionality are top notch. The pumps are relatively quiet while inflating, just a low hum. The valves and release of air in the chambers are a bit louder. If you are a light sleeper this could take some time to used to or you can set it to a static setting that does not adjust as you move in the night. We have had a couple of issues. We had 2 pumps go bad, one shortly after delivery and the other at about 6 months. The second pump was likely due to an air leak that developed in one of the air bladders. Thank goodness for modular design everything is easy access and user friendly to replace if need be. I do feel a mattress at this price point should be better insulated from such defects BUT, and this is a HUGE BUT, the customer service is second to none! With each of the issues we have had, we have had a replacement part the NEXT DAY, no questions asked. I have even received answers to questions asked after normal business hours. I don’t know of any company that does this, truly OUTSTANDING CUSTOMER SERVICE. They really want you to be a satisfied customer and overall we are. We have owned the bed for about 6 months as of this writing.