very comfortable/little bit of bad side

ive owned a sensapedic for about 11 years now. I was late to everything it seemed like for the first year that I owned it. I slept so hard. I never knew how well I was not sleeping till I got the best sleep of my life. I had back problems when I bought it and hoped that it would improve my sleep, which it definitely did do. I had 4 back surgeries in the last 5 years and the bed was a boon during those times. Overall the integrity of the mattress has held up fine. I weigh about 170lbs and my wife an even 100. I have spent way more time in my bed than the average person. There is only a very small impression in the middle that just appeared this year. The only problems that I have about it is that its heavy and that I sweat a lot in any bed at times due to not being able to control my body temperature because of my meds, because of this my matress was soaked several times over the years and seems to have mold or mildew on it. So though it does "wick" away the moisture, if its too much, it doesnt have anywhere to put it and because the material is so dense, it doesn't dry like it should. There was a nice mattress cover that came with it, It has held up over time through many washes. I hope that this review helps people to make informed decisions about their health. Make no mistake, where/how you sleep does affect your health.