This is the third mattress in 25 months. I weigh 190 pounds my wife weighs 125 pounds and after about 9 to 10 months the mattresses just cave-in and we're trying to sleep in divot and there is a big hump in the middle. The exact same thing happened on our first mattress and after 10 months they replaced it with another mattress after nine months we have to have that mattress replaced. So we just got this mattress last week and we will see what happens.