Oh god, that sounds harsh, but yes your right. I had the old one about 2 years but it was always too springy for me, I need a harder more supportive mattress for my back and I found it was too noisy as well, could hear springs every time I moved, which broke my sleep.
The new one is just a silent night and it seems more solid, so hopefully it will help me with my recent sleep problem, with exams this and next week, sleep is so important.