They are however much LESS expensive to build giving the bedding manufacturer much MORE profit. But let's assume for a moment that I don't know what I'm talking about. You've only got one side to your mattress. Let's talk about durability. In other words, the length of time, in years, your new mattress will provide proper comfort and support.
Testing proves it.
Here again, if your mattress only has one sleeping surface, you don't have that option. Your mattress simply won't last as long. Better look again. Buy a TWO-sided mattress. It's a much more sound investment.