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If you are curious about the advertisements on television for memory foam mattresses, but do not want or need to purchase a whole new bed system, then looking into memory foam toppers is an inexpensive and convenient way of obtaining many of the same benefits. Memory foam mattress toppers will allow you to sample what all of the advertisements are talking about, without the very high price tag attached, and without having to replace your current mattress.

Memory foam is also called visco-elastic foam. It was developed by NASA to create a comfortable and supportive environment for astronauts as they underwent the pressure changes that occur during space travel. The technology was soon adopted by hospitals, who found that it was an effective and comfortable means of helping to keep bed-ridden patients at ease during long periods of time. The original memory foam mattress was developed by a Swiss company, and it is the brand name that is most associated with the use of the technology in private homes: Tempur-Pedic. This brand is unquestionably of a very high quality, but has an accompanying price to match, which makes the mattresses inaccessible to most of the population.

Memory foam toppers take the same technology of visco-elastic foam, and put it into a foam pad that goes directly on top of your existing mattress, offering all of the benefits and comfort of a memory foam mattress, at a fraction of the price. If you determine that memory foam bed toppers have substantially improved your sleeping experience, then you may decide to invest in a mattress when it comes time to replace your current one.

There are several brands of memory foam toppers on today’s market. Prices will vary depending on the size of the topper purchased, as well as its brand name and overall quality. Although many brands use the term memory foam, they are not all constructed identically. The quality and efficacy of memory foam mattress toppers will depend on their thickness and density, as well as the individual’s size and weight.

The basic principle of visco-elastic foam is that it senses individuals’ minute changes in body temperature and weight, and conforms accordingly, in order to match exactly to each body shape and contour. It effectively re-distributes the body’s weight over a larger surface area, thereby reducing pressure points and increasing circulation, by providing extra support where and when it is needed. Clearly, memory foam toppers are only providing a layer of this support, as opposed to an entire mattress’ worth, which is where the issue of thickness becomes an important one.

Memory foam toppers will typically come in thicknesses of one to five inches. The thickness that each individual selects will depend on their size and weight; a heavier person will require a thicker pad in order to properly support and redistribute their weight, while a too thick pad may cause an individual to sink too far into the mattress, creating a new type of discomfort. Essentially, the thickness of individual memory foam toppers will depend on the preferences of the individuals who are using them. The same applies to the variances in density.

Typically, individuals should look for memory foam toppers that have densities between three and five pounds, depending on the desired degree of firmness. A minimum of a three-pound density will ensure that the individual is obtaining the full benefits of the memory foam technology, while a lower than three-pound density may not provide adequate support. These lower density memory foam toppers do exist however, and they are frequently sold for considerably lower prices. Just remember that the price you pay will likely reflect the quality of the item that you are purchasing. Similarly, the larger the slab of foam, the higher the price; a king size memory foam topper will clearly be more expensive than a twin sized one, to account for the fact that there is over two times the amount of material used for the former size.

Typically, memory foam toppers will sell for between $50.00 and $300.00 USD, depending on the variations mentioned above: thickness, density, and size, as well as the brand name attached. Conduct research on all of the brands available on the market to determine which will suit your needs the best. Look for warranties or guarantees, since memory foam may not be for absolutely everyone, and although the toppers are not as costly as the mattresses, they are still an investment that you will want protected.

Experiment with memory foam toppers to determine what your ideal thickness and density levels are. This way, if you eventually decide to purchase an entire mattress of memory foam, you will already have a very clear idea of what works the best for you. Enjoy a comfortable and satisfying sleep experience every night, and experience for yourself the many benefits of memory foam toppers.