Greatest mattress ever
The F700 is the greatest mattress I own today and have ever owned. I bought it because it was the most expensive, hoping that if i paid the most I would get the best. This mattress definitely delivers. If money is not a limiting factor, don't look at any other product, get the F700. One thing to note, the mattress is very very high. If you have a platform bed you'll be fine. If you are buying a regular foundation like I did, make sure to get the low profile. Even with the low profile depending on the frame, you might still find it very high.