Worth every penny!
As it says on the box, after an hour it’s good, after 24 it’s amazing! So true.
One thing I would say is that these are a lot warmer than sprung mattresses, so the first night was way to hot. After changing to our summer duvet and turning the heating down a few degrees, we have a great night sleep every time. The only downside to all this is that when we stay at a hotel now, the mattress just doesn’t cut it!