Worst mattress ever!!! Don't buy Ortho!

In May 2010, we bought a brand new Summerhill and Bishop "Norland" plush firm bed. It's not named the "Norland" anymore, it's called something else now. It was one of the medium end ones -- about $1700 for a Cal king. Keep in mind, this was only two years ago, and it sags so bad now, you can visually see the two ditches where we sleep in the bed. I am about 130 lbs., and my husband is about 165 lbs., so we are not heavy people! It was very comfortable at first, and I swear to you, right after the warranty let out, we noticed it started sagging. We even stuck to the rotation instructions to ensure this wouldn't happen! The salesman swore this was one of the best beds out there for the value. If you ask me, it's worth about $1. We wake up in horrible pain every morning, and now, after only two years with this mattress, we have to buy a new one. Absolutely ridiculous. If I could give it no stars I would.