Increasing comfort, where you can quickly work up a sweat

The mattress was very tightly folded, in a fairly small package with me to (positive). After a short time (2 hours) it had reached its full volume on the bed. On my little harder tuned mattress, this was a pleasant increase in comfort. Who but a little at night tends to perspire, will possibly be a little disappointed. My impression is the humidity, which can be caused by sweating, not sufficiently discharged through the mattress.
After the first few days the somewhat peculiar smell of the mattress material disappears. So just a little more air in time. The mattress is a compromise.