Cautions About A Memory Foam Mattress Topper
April 23rd, 2010 | 
Author: If you’re comparing the options of buying a complete bed made of memory foam or sticking with your original bed and putting a memory foam mattress topper on instead, you might need to exercise caution if you’re favoring the latter choice. Yes, you want the benefits of the memory foam, which are great nights of sleep, excellent support, and a mattress that “remembers” and returns to its original shape in the morning. But it’s how the foam topper interacts with your existing mattress that might be the problem.
What makes a memory foam bed work so well is a combination of things. The top layer of foam is what softens when exposed to body heat, changing to adjust itself to your contours. But the memory foam in lower levels of the mattress retains its shape and firmness, since the heat doesn’t reach down that far. That quality of support provided by the lower level of the foam stems from its high density; in some cases as much as 8 pounds per cubic foot. This very firm support is just as important to the function of the memory mattress as the softening and changing of the upper level.
This is where the memory foam mattress topper simply might not do as well as a complete bed. Your existing mattress will need to be very firm indeed if it’s going to provide anywhere near the underlying support the topper would get from a visco memory foam mattress. And your own mattress should be completely flat as well, because if it sags anywhere, then the foam mattress topper is going to sag in those places too. All the health and sleep benefits are likely to vanish completely if the existing mattress has such flaws.
With these factors to consider, you might want to stop and take stock again, when thinking of buying a memory foam mattress topper. Unless you can be sure your existing mattress is firm enough, not to mention flat enough, to provide all the support that a topper made of foam would need, then you may be wiser not to waste money on the topper at all. A better option, if you’re looking for all those health and support benefits while sleeping, might just be to forget half measures, and buy a complete bed made of memory foam instead.
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