Memory foam was created by NASA to decrease the g-force pressure on astronauts during take-off . The health industry took advantage of this innovation . They began using memory foam mattress toppers on immobile bed bound patients, that had pressure sores.
Because of being so dense, it is firmer in lower temperatures and becomes soft with heat. As body heat warms the foam, it gets softer and adjusts itself to the shape of the body. This not much time to happen .
At first, Tempur-pedic memory foam was too expensive for being put on the open market for retail stores . Nevertheless , technological progress has allowed cheaper ways to make the materials. Now, there are memory foam mattress pads, pillows, and even a latex mattress pad - all affordable for the public.
Most people choose memory foam mattress pads, for memory foam mattresses are just too soft. The pad can be placed on top of a firm bed and still relieve you from pressure. Sizes as a rule are of 2 or 3 inches , but 1's and 4's are offered by a few companies. The more you weigh , the thicker pad you would want to buy. One more choice you will see amongst the various companies is firmness. Firmness is measured by the foam's Indentation Force Deflection (IFD) rating. IFD measures what quantity of pounds of force is needed to make a dent of 1" into a foam sample 15" x 15" x 4" by a 8 inch diameter. A 10 would be the softest . An IFD of 120 would be semi-rigid. You should also check the warranty. Some manufactures offer a 20 year warranty, while others only offer a 10 year warranty. You may be offered a 90 day trial by some vendors. The price is dependent on size, thickness, and quality. Approximately it is: USD $120.00-$400.00 .
There have been some troubles reported by consumers ( mainly with memory foam made in China.) One of the chief complaints are allergens. PBD is a chemical fire retardant, that can cause respiratory irritation. However, there are special protectors that you can buy. Covers like- the "Protect-A-Bed Premium Mattress Protector" do not change the comfort or function, but will protect you from the allergens . It is advisable to make sure the company does not use any poisonous chemicals in manufacturing .
Everyone wants a good nights sleep with comfort. People who tend to have joint pain, muscle stiffness, and pressure spots....can buy memory foam mattress pads to allow themselves a good nights sleep. On a common mattress the body must adjust to the mattress. This can be difficult for people with diseases like, fibromyalgia or arthritis. A memory foam bed adjusts to support no matter what position you are . Manufacturers also claim that memory foam products reduce sleep apnea. However , this claim has not been either proven or condoned by the medical community.
