Hi hickoryboy,
Thanks for the ongoing feedback. the Pamper is the firmest mattress they make but with your back sleeping and your wife’s lighter weight it could work out very well even without any fine tuning. the first few weeks will tell the story but it seemsyou are moving in the right direction in terms of both the initial break in period of the mattress and your adjustment to it.
Latex is the most durable of all the foam materials so there’s no doubt in my mind that it will last much longer than this.
There are many factors involved in the sleeping temperature of a mattress besides the person themselves and the environment of the bedroom (see post #2 here for a synopsis) including the foam itself, the quilting/ticking of the mattress, the type of mattress protector you are using (or not), and your sheets and bedding. When you are sleeping directly on the foam itself with a stretch knit cover without a breathable quilting layer, then this can be warmer than a mattress which has a quilting layer which allows for more ventilation. The advantage is that with a stretch knit unquilted cover … more of the feel of the latex can come through.
There is more information in post #89 here about the different types of mattress protectors and the tradeoffs and benefits of each type.
Since you are sleeping warm … the Dormeir (wool/cotton) could be a good choice. It will help with ventilation and temperature control and is also water resistant.
Phoenix