Hi Kozy88,
I’m glad you found us before you pulled the trigger so you have some other memory foam options to consider (the online memory foam list is in post #12 here).
The Regalis uses the Tempurpedic Rhapsody as a reference point and the Cirrus Luxe uses the Tempurpedic Cloud Luxe as a reference point so I would make sure you’ve tested both of these in a local store (using the testing guidelines in the tutorial post) so your testing can decide which one would be a better match for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences). Your own personal testing along along with a more detailed conversation with the manufacturer is the most effective way to decide on which of their mattresses would have the highest odds of being the best choice for you (see mattress firmness/comfort levels in post #2 here).
How a mattress feels and performs can be unique to each person and can be very different from someone else.
Phoenix