Fantastic bed when new but disappointing over time...

For the first 5 years, this bed was everything I had hoped it would be: just right in the areas of warmth, softness/firmness, comfort... Great for side-sleeping and no discomfort on my hips or back. But, as mentioned, it began to sag in the middle after only 5 years. Sleeping with a partner began to be problematic as both of us would slide towards the center. However, it remained comfortable enough to sleep on until 7-8 years. As do most people, I waited too long to replace it (began to have hip pain) and should have done so earlier. It was a very expensive set to purchase and the bed being a Stearns and Foster, I had thought that it would preform much better over time. I will not purchase Stearns and Foster again because of my experience. I will also say that I will never buy a bed again from raymour and flannigan, MA. Slick salespeople who misinform people about their products.