I've had amazing sleeps on this mattress over the past 5 years, using it for approximately 4 months per year when home from school. It is very clean and still in great shape. No sagging or stains of any sort, and it is priced to sell. It was over $800 new and is extremely comfortable. Pick-up only.
The mattress is 80" long, 54" wide, and 13" thick.