#1 in Sleep Product Research Millions Served Since 2008 Mattress Topper Reviews > Memory Foam Mattress Topper Reviews Based on 38,517 Actual Consumer Experiences THE GOOD: Most popular mattress topper • often highly effective at improving mattress comfort • available in several varieties to suit personal need and preference. THE BAD: Potential for initial odor and heat retention • can be too firm for people under 120 lbs • somewhat difficult to move on / get up off • squishy feel possible • fairly heavy. THE COMPETITION: See how other topper types compare to memory foam in the topper comparison. Ratings show how the various memory foam topper varieties compare to the average mattress topper. Ratings indicate what tends to be true; ratings for a particular model or individual topper may vary. The table below compares toppers with 89% or better owner satisfaction based on at least 500 consumer experiences. * Memory foam density indicates how
For example, foam with 3.0 lb (or lbs/ft) density means that a cubic foot of this foam weighs three pounds. See the above grid and memory foam density: low vs high to learn more about differences in density. ** Gel-infused memory foam tends to sleep about 25% cooler longer than regular memory foam all other things being equal. *** CertiPUR-US certified foam meets standards for content, emissions, performance and durability. Memory foam is made from polyurethane with additional chemicals to increase density. The foam is made up of millions of spherical shaped, open cells. What makes memory foam unique is its temperature and weight sensitivity. Memory foam mattress toppers should generally be expected to last about three to four years with regular use – a rate somewhat better than that of the average mattress topper. Memory foam toppers with higher density foam (4 lbs/ft or more) may last somewhat longer than those with lower density foam (3 lbs/ft or less).
As the toppers age and wear, they tend to lose their resiliency and support. They may also discolor and tear. Memory foam toppers often have warranty lengths of 2-5 years. Owner experience data suggests that the likelihood of successfully filing a warranty claim is low. Consumers, as a result, should probably not place much emphasis on warranty coverage when shopping. When unpackaged, memory foam can initially give off a gas or odor which can last from hours to weeks. Off gassing is the main complaint by memory foam topper owners as about 18% report the problem. Off gassing can be a small annoyance to some people and unbearable to others. Learn more about memory foam off gassing. There is often randomness as to whether and how much a memory foam mattress topper will off gas. However, owner experience data suggests that off gassing tends to correlate with topper thickness. * Off gassing lasting more than 24 hours. About 7% of memory foam topper owners – vs about 4% for the average mattress topper – report that their topper sleeps hot or, in other words, fails to disperse body heat resulting in an unnaturally warm sleep surface.
Thicker memory foam toppers tend to have more heat-related complaints than thinner varieties. This appears to be due to the fact that the sleeper often sinks further into thicker toppers where there is less air circulation. High density foam toppers may also increase the potential for heat retention. * Heat retention is enough to undermine sleep quality at least some of the time. Gel-infused memory foam tends to sleep about 25% cooler longer than regular memory foam – all other things being equal. Memory foam toppers can often be added to just one side of a bed to, in effect, provide different firmness and feel for each side. This can make a mattress more suitable for couples. Learn more on how to have a topper on one half of a mattress. Higher-density and thicker memory foam toppers can impact romantic activity. While they offer some advantages such as improved comfort, they also may reduce bounce and make movement more difficult and awkward. Learn more about the pros and cons of memory foam on this issue.
Serta Ultimate 4-inch Memory Foam Mattress Topper Review The Serta Ultimate 4-inch Memory Foam Mattress Topper is a good choice for those who prefer a very soft bed. Many users like the way they sink into the thick, dense foam, and say it's great for relieving pain in their back and joints. that the topper is too soft to provide good support and makes it hard to moveIt comes in twin, full, queen, king and California king sizes. also makes a well-reviewed 2-inch topper, the Serta Deluxe 2-inch Memory Foam Mattress Topper ($60 and up). Good for pain relief Too soft for some soft, but not very supportive. Owners agree that Serta Ultimate 4-inch Memory Foam Mattress Topper is very soft; many reviews compare it to sleepingThat's great for some, but not everyone. Some say they sank too far into this 4-inch memory topper, and felt as if they were sleeping on a giantthe vast majority of users say it has transformed their old mattress and greatly improved their sleep, adding that it is soft yet
The topper seems to be most popular with side sleepers, less soVery few co-sleepers report "rolling" into each other due to dips in the middle. Like most memory foam mattress toppers, the Serta retains body heat to some degree, but most users don't find it bothersome and some say they appreciate the added warmth. memory foam mattress toppers, the Serta Ultimate 4-inch Memory Foam Mattress Topper has a chemical odor when new, but most reviewers find that the smell is minimal and disappears if the topper is aired out for a couple of days beforeThe manufacturer suggests taking it out of the box and allowing it to unroll itself for 48 hours; this also gives any odors time to dissipate. However, many owners say the mattress pad was completely expanded and the odor gone in just a few hours. Some reviewers say that the Serta topper tends to run a bit smaller than the mattress they buy it for; although few report that as a problem, merely an observation.