I have had my bed for about a month now. After allowing it to air for ~ 2 days, the smell was reduced significantly. Since then, the smell has completely dissipated. Usually I sleep all night b/c I am a hard sleeper, but I no longer have the nagging lower back ache I had previously sleeping on my coiled mattress. I think the pillow-top allows for more aeration, b/c I haven't experienced any excessive amounts of stored heat while I am asleep. Warning to some, the mattress is quite heavy initially. I can't imagine being able to move it w/o assistance once fully aerated. Good purchase. I highly recommend this mattress.