Hi, I am looking for mattress and recently looking at Orthorest. Does anyone know the thickness of memory foam and is it pocket spring for the mattress below?

Orthorest Platinium Ultima
Orthorest Reflection
Orthorest Viscopedic
Orthorest Perfect Kontour

I am looking for individual pocket spring mattress with at least 2" memory foam at the top. So far other brand come in mind is King Koil Mister America.