We have previously bought Ikea mattresses and they've lasted well but this time we decided to treat ourselves to a Hyde and Sleep mattress in January 2018 after seeing good reviews. Last summer we noticed 2 cannonball dips in our mattress (we are not heavy people - I am just over 8st). We have turned it as advised but the dips got bigger to the point where my husband was not sleeping well and his back was aching. The mattress came with a 10 year guarantee and so we contacted Dreams who sent an engineer out. He said the dip had to be just over 3cm and ours was 2.5cm and so not enough to be deemed faulty. When a mattress causes poor sleep and a bad back, I'd say this is faulty and I would certainly expect a mattress to last longer than 2.5 years. At the time it said normally companies offer an 8 year guarantee but they were so confident, they were offering 10 years. Terribly misleading and such a waste of money. I will never buy an expensive mattress ever again and wouldn't trust Dreams......Ikea all the way!