Great night's sleep

I initially bought this with the 9 inch box spring but it was way too high, so I worked with Serta and Sams Club to change it to a 5 inch boxspring. Both reps were helpful and I was abl to accomplish the exchange in about ten days at no charge. The mattress is firm but not hard. I like the gel foam which gives substantial support and is not too mushy. The bed is about a 3.5 on a scale of 1-10(soft). I live in Florida and haven't found that the gel foam produces any heat at all. Serta gives a 120 day warranty for this hybrid model , so you can change it if you don't like it.