Sleeping on memory foam is very personal preference.
I just can not sleep on this, as I feel restricted in movements.
My dearest love it.
So at home we have split mattresses on our bed
, my side without memory foam top, her side with 50 milimeters of memory foam top and we are both happy.
Neither of us can sleep on thick memory foam. We spent several days in very renowned hotel
with so equipped bed
and we both were sleepless. For us it was experience of BDSM kind rather...
Neither of us have memory foam on our boat berths - it is just too hot for us to sleep comfortably in warm climate