What is memory foam? Memory foam is a viscoelastic material. “Visco” means that it is thick and resistant to change, and “elastic” means that it reforms its shape after being distorted. Normal foam is merely elastic, while memory foam can “remember” the shape of an object pressed against it (such as a sleeping human). This “memory” means that memory foam can support the weight of sleeping body in a much more even, balanced manner than any normal mattress. There are many who find their lives greatly improved by switching to a memory foam mattress. People suffering from chronic back, shoulder, neck, or other joint pain are almost always delighted by the way memory foam eases their discomfort. Others who are uncomfortable on standard mattresses or who are easily awoken by their partner's movements find memory foam mattresses invaluable. Memory foam comes in many different feels. These are determined by density, firmness, and thickness. The history of memory foam.
Memory foam was originally developed by the United States space program to dampen impacts and protect its astronauts. Originally known as CONFOR foam, it helped keep astronauts safe during take-off and landing. It then spread to other areas where high g-forces were experienced, such as seating in airplanes and helicopters, as well as situations where people had to remain immobile for long periods of time, such as in hospital beds. As the manufacturing process became easier, enterprising engineers brought it into the public market, where it quickly revolutionized the sleep industry. What you need to know about density. Density is the measure of just how much material is in each cubic foot of your mattress. Mattresses foam usually comes in densities of 3 to 7 pounds per cubic foot—industry leaders Tempur-Pedic® and Amerisleep use foam that's between 4 and 5.3 pounds per cubic foot. More density is not always better! Lower density foam tends to have less “memory” and is softer than higher density foam.
Foam with a density greater than 5.3 pounds per cubic foot tend to make you feel “stuck” or “trapped” in your bed once it has adjusted to your body. Density affects memory characteristics Affects cost of the mattress Ideal density and industry standard is between 4-5.3lb Denser foams will cause the user to feel more "stuck" in the mattress Higher density is always better All density is created the same Density is a reliable indicator of quality Density is the only factor that affects the comfort. How firm should my mattress be? The firmness of memory foam decreases as temperature increases. That's why we use thicker foam on the top of your mattress (where you body will heat it up) than on the bottom. How do you decide what level of firmness is right for you? A great place to start is your current bed—is it too soft? Aim to fix whatever problems that you're having now, first. Then, think about your usual sleeping position.
Back sleepers will usually need a firm mattress, while side and stomach sleepers should consider something softer. And if you don't get it exactly right the first time, don't worry! Our 90-day guarantee means that you can trade mattresses until you find the one you need. Consider your body's shape and match it with the proper firmness to give you proper and natural spinal How thick should my mattress be? It's not just about firmness and density—the thickness of each layer in your mattress has a powerful effect on how it feels. Using customer feedback and our own research, we've determined that anywhere from 2” to 7” of memory foam is just about right for your top later. The thinner the top layer, the closer you'll be to the support layer underneath, and the firmer your mattress will feel.The higher the IFD number is, the firmer your mattress. The lower the number is, the softer your mattress. Ratings above 30 are usually considered “firm,” while anything below 25 is “soft.”
For those who are a bit more curious, here's the full explanation: IFD stands for indentation force deflection. It's a measurement of the amount of force required to push a round testing foot into a foam sample to a certain percentage of its thickness. However, it's not a measurement of density, and so a low density foam with a high IFD rating can still feel soft when compressed. This is another reason why we offer our 90-day trial of any mattress you order. With so many factors to consider, it's much easier to just try and bed and see if it works for you. IFD's Effect on Firmness A higher number is firmer while a lower number is softer. Should I replace my box spring?Your box spring may still have years of life in it. Here are the things you'll want to look for: Less than 8-10 years old Steady, flat, and smooth on top A solid construction, with no broken pieces, splinters, or cracks If it's still in good shape, you may be able to reuse it.
Be careful, though, because a worn-out box spring will prematurely age your mattress, damaging your investment and keeping you from getting good sleep. You may save money in the end with a quality foundation. When in doubt, throw it out. 1Prices reflect current promotion or sale. & FREE Delivery in the UK. Order within and choose at checkout. Memory Foam Mattress Topper with Cover, 3 inch - UK Double Dispatched from and sold by Amazon. FREE Delivery in the UK. Details16" EXTRA DEEP Double Size Egyptian Cotton Fitted SNOW Sheet, Bedding. **Carefully Woven From Long… Double (135 x 190 cm)With Cover Product Dimensions90 x 32 x 32 cm 3,619 in Kitchen & Home (See top 100) in Kitchen & Home > Furniture > Bedroom Furniture > Quilt Stands in Kitchen & Home > Bedding & Linens > Mattress Pads in Kitchen & Home > Furniture > Bedroom Furniture > Mattresses & Toppers Delivery Destinations:Visit the Delivery Destinations Help page to see where this item can be delivered.
Date First Available20 Feb. 2015 Would you like to give feedback on images? This Memory Foam mattress topper is made with a 40kg density UK made 3" memory foam and adds great comfort when combined with a conventional mattress. The 3" Memory foam topper is placed on top of your current mattress to give better comfort, aid sleep and reduce muscle, circulation and joint problems, a great value way of improving your comfort during sleep. Dimensions: 75”x54”x3" (190cmx137cmx7.5cm) This Mattress topper is supplied with a luxury fitted removable cover which gives the item a professional finish and also maximises the comfort of the item. 1 x mattress topper What do customers buy after viewing this item? Quilted Mattress Protector - Double See all 2,381 customer reviews MISS L J BAKER See all 2,381 customer reviews (newest first) Most Recent Customer Reviews I am very happy with this mattress topper. It has made the bed so soft and comfortable, no more back pain and it doesn't slip !