Mattress Ratings >> Memory Foam Mattress Ratings
Disadvantages of Memory Foam Mattresses → Based on Data From Over 3,400 Actual Owners
Page last updated Feb 3, 2010.
1. Temperature sensitive
The temperature sensitivity of higher density memory foam, i.e., Tempurpedic®, can be a problem, according to around 7% of owners included in our research. "Temperature sensitive" means that memory foam is firmer in cool temperatures and softer in warm temperatures or when it is in contact with the heat given off by a person's body. This feature is what allows memory foam to mould itself to a person's body and, consequently, provide good support and comfort.
This moulding characteristic, however, can also be a disadvantage in that it can make moving on or getting up off the bed somewhat difficult, at least compared to other types of beds. It can also give the sensation that one is sleeping in "mud" or "quicksand," two words that are often used to describe sleeping on the beds by those who do not like them.
Also, temperature sensitivity means that the bed may be quite firm, even at room temperature, and won't become more pliable and comfortable until your body heat warms it.
2. Off gassing / initial odor
3. Retains body heat / Sleeps hot
4. No adjustable firmness
Unlike airbeds and waterbeds, memory foam mattresses offer no adjustable firmness. If one wants to change the firmness level of the bed, he or she would have to buy a mattress topper that would more suit their firmness preference.
5. Takes getting used to
At least 7% of all memory foam bed owners in our research, especially owners of higher density foam, report that the beds take getting used to at first and are not immediately comfortable. Owners of other mattress types, with the possible exception of latex beds and air beds, did not report this problem in any significant number.
6. May not be for those who don't weigh much
People who don't weigh much (under 120 lbs or so), often say that they don't sink into the foam. As a result, they can't fully benefit from the foam or find good comfort. This problem can occur with all densities, but it is especially an issue with higher density foam.
7. Dislike other beds as result of sleeping on memory foam mattress
According to at least 7% of owners, the "takes getting used to" disadvantage above can work in the opposite direction as well. Once people become used to sleeping on memory foam mattresses, they may have difficulty finding comfort on other mattress types that they may use when traveling, especially innerspring beds.