[dutchmensport]

Unbelievable, the mattress that came factory with our current fifth wheel has been pretty good and comfortable. However, we've had it for about a year and a half now, and have slept on it (almost) every night. It's beginning to sag. We'll be getting a new one, probably this Spring.

In the past, we replaced all our travel trailer mattresses with whatever we were using in the house, namely, Serta. If it's comfortable in the house, there is no reason why you should not be just as comfortable in your camper. Get the best money can buy (not necessarily the most expensive), and your back and neck will love you for it.