Mattress Ratings >> Memory Foam Mattress Ratings
Memory Foam Mattresses and Heat -- Based on Data From Over 3,400 Actual Owners
Page last updated Jan 5, 2010.
Memory foam mattress owners sometimes mention that their beds "sleep hot" and are a heat trap.
This means that the mattress absorbs and then fails to disperse a person's body heat, resulting in a sleeping surface that is unnaturally warm.
Sleeping hot is caused by the unique structure of the foam, and, as a result, sleeping hot is usually not an issue with other types of beds, at least not to the extent it is with memory foam.
According to our collected data, overall, about 7% of memory foam mattress owners say that their mattress is, at least some of the time, too warm.
The number of people reporting a problem with sleeping hot on memory foam mattresses has noticeably fallen in recently years for most brands. This is likely due to changes made by the manufacturers to reduce the heat trapping.
Below are how some of the better known brands rate on this issue.
| Brand | Percentage
of owners who said their memory foam bed sleeps hot |
| Isoform | 8% |
| Bodipedic | 5% |
| Bragada | 8% |
| Night Therapy | 4% |
| Sleep Innov/Novaform | 9% |
| Spa Sensations | 4% |
| Tempur-pedic | 7% |
Some owners say that using a thick cotton pad will help to keep the bed cool. Others say this makes no difference.
Bottom line: If you are a naturally hot person, sleep in a warm environment, or like to have lots of heavy covers on when you sleep -- memory foam may possibly be too warm for you.