I waited approximately 6 weeks and several mattress turns before my review for my Hypnos Earth 01. I changed my original mattress from Bensons for this one, big upgrade wise. I wanted a firm mattress with a soft outer. I took the advice and swapped for the Hypnos 01 Firm instead of Extra firm. The mattress is super comfortable just dips a little when in it (I weigh 9.5 stone). I have never slept better so now I can justify the outlay! No getting used to it at all, I drop off so quickly and stay asleep all night. On reflection I would have ordered the Extra firm as this mattress is well padded with my theory being it might last longer but I know diddly squat about mattresses to be honest. Really impressed with Hypnos though, lovely quality. Onto Bensons; they were so helpful. On changing my mattress to communications generally just excellent. From customer services, the delivery coordinator and the delivery guys. It really blows your mind when you get really good service these days, they follow through on everything. My sister in law recommended them, she wouldn't use any other company and I see why! Highly recommend and many thanks to you all. A happy sleeper