From the internal structure of Simmons mattress, there is no positive or negative.

However, in order to use it better and more comfortably, changing the direction regularly and turning it over regularly will extend the service life.

Simmons mattresses do not have front and back sides. This kind of mattress can be used directly when it is laid on the bed. However, before trying it out, it is best to tear off the plastic film on the mattress so that it can be used. It can ensure the breathability of the mattress.