Restolex is a ISO 9001 certification from Germany and also a member of the International Sleep Products Association(ISPA) USA.
I bought this Restolex mattress from a retail shop for my mom as she has back problem.We had few choices but my dad made his decision on this brand and sales person too did appreciate this brand a lot and we bought a Foam Spring mattress of this brand.
It costed around 13000 rupees for 8 inch size.All I understood was this mattress has top layer made of Pu material(polyurethane layers), middle layer of springs of bonnell type and again a layer of PU material.
The mattress is really soft and flexible.Body gets relaxed and the bed takes the shape of our body so no resistance or obstruction while sleeping.Mom was pretty comfortable using this mattress.
The quality of the cover material is good and are really beautiful.This is really good product and as I just remember jumping on to bed! Hope they last long, I have been using for two years ago far good and it comes with 5 year warranty! Worth investing money for nice sleep!