Hi rd3482,
The first thing I should mention is that the Dreambed Deluxe doesn’t have any memory foam in it. It’s made from a high quality polyfoam.
It’s not really possible to know how warm any specific person will sleep on any mattress because there are so many variables involved not the least of which is where you are in the “oven to iceberg” range.
Having said that … polyfoam is generally more breathable than memory foam (which is the type of foam that most people complain about concerning heat) and for most people it would be fine in terms of sleeping temperature. Even with memory foam the number of people who sleep too hot are a minority.
In addition to this … there are many other variables that can have a significant affect the sleeping temperature of a mattress besides just the foam in the comfort layers which includes the type of mattress protector you use (see post # 89 here) and the types of sheets and bedding on your mattress. Natural or viscose (rayon, bamboo etc) fibers or materials in your mattress protector and sheets will tend to sleep cooler and wick moisture and heat better than synthetic fibers and materials.
Overall … the odds are good that you will be fine with the Dreambed Deluxe.
I should also mention that they also sell latex mattresses and toppers at DixieFoam Beds. NOTE ADDED: They are now a member of this site as well
Phoenix