Terrible company to deal with when you need ongoing support. We spent £1800 on a "quality" mattress called the resplendent following advice from the sale team in store. Both my husband and i suffer with chronic back pain, therefore a good quality matress is a must! We were advised to purchase this mattress as it apparently has good support, we also had a 10 year guarantee. After 2 years, the mattress sunk on both sides and was so uncomfortable... it made our backs even worse. I therefore called on the 10 year guarantee.. they sent an "independent" assessor to review the mattress and to give them their dues they replaced it (after alot of arguments and a further £50 payment!!). It has now been another 2 1/2 years and the mattress has sunk again.. even worse than before and we both cannot sleep... have even worse back and hip pain and now under Physiotherapy. At first they refused to accept that we had a guarantee... until we gave them proof of the additional payment we had made to cover the new mattress. Once they accepted this fact the rude lady on customer services agreed to send another "independent assessor" out. The responses from the assessor after asking more or less how big my husband was (not that this should matter and also none of their business) was laughable. Apparently this would be classed as an invalid claim as 1.the mattress has not sunken past dreams recommended 4 1/2 cm 2. Every mattress sinks no matter how much you pay 3. Physiotherapists will always blame the mattresses for bad backs as they need something to blame 4. The mattress was perfectly supportive to him (when he lay on it for 10 seconds) 5. The slats on our bed weren't at the dreams recommended distance apart....???? I do not believe these assessors are independent at all.. I believe they are paid by dreams to argue these claims. When my husband and I measured the sinkage of the mattress with a solid piece of wood placed on top from corner to corner..... the defecit measured in excess of 5cm!! Dreams have refused to accept this and will not even look at the pictures we have sent them. We are now stuck with a £1800 mattress that we cannot sleep on due to excessive pain... we cannot afford to purchase another one as yet. Dreams customer support leaves very little to be desired and the 10yr guarantee just a joke! I have since read other reviews regarding this mattress and it seems to be a common problem but dreams refuse to accept this and just state that other reviews shouldn't be taken with any serious weight!!! Unbelievably terrible company to deal with.