Hi silverpunk,
Welcome to the Mattress Forum! … and I’m glad you found us 
Unfortunately I can’t feel what you feel or see you on the mattress in person so there is really no way for me to know which mattress would be best for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences). Even with similar body types … PPP can be different for each person on the same mattress (see mattress firmness/comfort levels in post #2 here).
IMO … the most important part of the three P’s is good alignment in all your sleeping positions followed by pressure relief followed by personal preferences.
“Comfortable and cozy” is very subjective and has little benefit when you are asleep and can’t feel the mattress if you are sleeping out of alignment and wake up with stiffness or back pain. I would keep in mind that it’s always possible to add extra comfort/pressure relief with a topper but there is no great way to improve the support of a mattress that is too soft because it would normally involve removing and replacing the foam layers that are too thick or soft.
I would make sure that you do some careful and objective testing using the testing guidelines in the tutorial post on both the Rhapsody Breeze and the Cloud Supreme Breeze and then make your choice based on another conversation with them that includes the more specific results of your testing and which one your testing indicates is the best match for you.
Phoenix