Hi jhatfie,
While both of these mattresses are good quality/value … there are some clear differences between them.
The most important of these is that the Select Foam has been specifically designed and tested to “match” the Tempurpedic lineup both in terms of the layering and construction, the quality of materials (they use the same or better quality) and perhaps most important in terms of feel and performance. Their entire lineup was designed in a way that a customer could use the Tempurpedic lineup as a reference point and have some confidence that the feel and performance of their mattress would be very similar.
The Restava may “feel” similar to one or another of the Tempurpedic mattresses to some people and it may also be a suitable choice for you but it has a completely different design with an inch of firming polyfoam on top and then 3" of gel foam over the base layer which is not the same as the Tempurpedic Cloud Supreme or Cloud Supreme Breeze or the Select Foam Cirrus Supreme ES. There is also a difference in the memory foam content and layering as well with one having a single 3" layer (Restava) and the other having two separate 2" layers like the Tempurpedic (Select Foam).
So you have narrowed your options to good quality/value choices between the two of them and there are many factors in what each person considers to be most important in a mattress purchase and their personal “value equation” but if how closely a mattress “matches” what you have personally tested both in design, quality, feel, and performance is an important issue for you or increases your confidence in making the most suitable choice … then this would give the edge to Select Foam.
Phoenix