The Refresh Medium has a very nice mix of comfort and support. A very well priced mattress if you like this type of feel. Amazing value considering its build quality.
The Four Feels standard version (without the mattress top) is a very nice firm feel with a subtle bounce and very good spinal support. This mattress is very versatile.
The Rejuvenate Medium Firm is a very good value mattress. The top layer has a network of spongy pockets that offer good support and comfort. There is a nice subtle bounce to it.
The Siesta Soft-Medium feels very cheap, flimsy, and unstable. You can feel the springs through the top layer with even basic movements.
The Comfort Plus has a nice spongy top layer that offers very good spinal support and certainly no sinking feeling. The top comfort layer has a good depth to it.
The Saint Tropez Soft-Medium feels nice and plush but still offers very good spinal support. Overall it feels very nice to lie on and partner disturbance is minimal.
The Saint Kitts Firm has a very firm and hard feel to it and comfort is certainly compromised. There is considerable pressure on the shoulders in a side lying position.
The Saint Barth Medium is quite firm for a medium version and offers very good spinal support. The top layer still absorbs body weight quite nicely.