On 1/17 I contacted simmons related to our 3 year old beautyrest mattress sagging. Simmons opened an inspection case 477494B/fa. The mattress inspector came to check the mattress. His inspection consisted of running a weighted piece of sting across the mattress and placing a level bottomed ruler in the middle of the mattress so that the actual indentation would be measurable. He then pressed down on the mattress and while the mattress was resetting to its normal position he then took a picture and said that it was 1 3/8in depressed and simmon... read full review »