To be perfectly honest, I'm not convinced but I think the problem is me, not the product. The mattress is clearly very good quality, but it's a lot firmer than I was hoping for and expecting from the soft/medium description. On the spare bed, which is a fully sprung base, it works reasonably well, which is why I haven't yet engaged the 60 day return option, but on the bed I ordered it for originally, which is a solid Ottoman base, it is way too hard. I'm sure that with use it will soften up, but it's still way too hard for me personally to sleep on comfortably and I doubt it will ever be that soft. Indeed, in desperation I ended up going to a shop and buying a much cheaper (and far inferior quality), softer mattress because I simply couldn't do 30 days sleeping on that mattress. I am going to contact Mattress Online today and enquire about swapping it for something softer.