We've written the most comprehensive report on memory foam mattress firmness to date. It includes no-nonsense explanations, recommendations, ratings chart and more and is the essential for every shopper looking at memory mattresses.
A Critical Eye On The Latest Mattress Technologies
Many manufacturers claim Swedish memory foam was first used by the NASA Space Program to boost sales for their foam matresses.
NASA never did use that basic material in the 1960s. NASA mattress or space mattress technology simply does not exist as such.
The truth is the Swedish Tempurpedic company did eventually come up with a reliable formula now used in the best-selling Tempur mattresses.
While Tempur-Pedic Swedish beds are commonly known as Swedish foam beds, not all such products made in Sweden are made of the so-called space bed foam.
How can you check if your purchase as good as authentic Tempur beds? You can try the wine glass test, the egg test, or the fridge test.
The most commonly reported problem consumers have with memory foam overlays is that they sleep hotter when compared to conventional sleeping surfaces.
But sleeping conditions are influenced by environment temperature, the material's heat sensitivity and your own body heat.