I needed to urgently change my mattress, I found Mattress next day, I chose one according to my budget and bought it. Then I discovered that it would not arrive the next day, so I contacted them and they explained to me that I had to check that the mattress I chose had stock (a green tick appears below the image) and they allowed me to change it, there was a small difference in money that was refunded immediately.
I think the mattress is good value for money, it came wrapped and it was very easy to take it apart. I sleep much better on my new mattress.