Can anyone recommend a good mattress for a cabin bed? It needs to be 200x90 and no more than 15cm deep (European single). The cabin bed has been ordered but the supplier's mattresses have quite poor reviews. I'm drowning in mattress sites and none the wiser as the reviews are quite confusing and some mattresses that look as if they might be good aren't reviewed at all.
I have grim memories of sleeping on a layer of compressed foam as a child, and would like to get a mattress with a bit of longevity; I don't know whether foam mattresses have improved since the 90s. She's average to lighter weight and loves our bed, which is pocket sprung. Any recommendations?