With all the advertising about memory foam these days, it's hard
to imagine that this material has only been in existence for a
little over 30 years.
It's difficult to find an exact date when memory foam first came
into being, but it was originally formulated during the early
days of manned space flight.
Most likely, it was in the mid to late 1960's.
The National Aeronautics & Space Administration needed a
material that would cushion the astronauts from the g-forces of
launch and re-entry during space missions.
In response the their request, a material was produced, called
visco-elastic memory foam.
I've seen dozens of articles explaining what visco-elastic
memory foam means and none of them has the same explanation.
The online dictionary gives no definition for the word visco,
but the word is derived from viscous, which means "gummy or
pasty." It is a cross between a solid and a liquid.
I think we all know what elastic means, but, again, the
definition is, "being able to return to it's original shape
after being deformed."
Well...that's enough of the grammar lesson. The point is that
this material hadn't existed before...it's unique.
The whole idea, of showing a picture with a hand print, over the
top of a memory foam mattress, is to illustrate that this
material isn't forcefully pushing against you.
That's why it takes a while for the memory foam to react and
slowly return, to it's original shape, once the hand is removed.
The other quality, of visco elastic memory foam, is that it's
temperature reactive. When it's heated, it becomes softer and
when it's cooled, it becomes firmer.
A body, laying on the memory foam material, will heat it, making
it softer under that heated area.
Again, it's not clear whether or not this earlier version of the
memory foam material was ever actually used in any space
missions. Some claim that the material off-gassed, producing an
odor that couldn't be tolerated in the small quarters of a
spacecraft.
It was not, however, too expensive for use as an aid to recovery
for multi-million dollar racehorses who had been injured or were
recovering from surgery.
Horses cut off their circulation when they lay down so when
horses are recovering, they need to be in the upright position,
so that their blood circulation isn't restricted.
This can be very difficult or impossible, because if the injury
is to a limb, the horses massive weight is too much for the limb
to support. Laying the horse on a large, thick, slab of memory
foam solved this problem.
Because memory foam melts away from where pressure is placed on
it, the body of a horse or human can lay on it without
restricting the blood flow.
Blood flow is critical, to healing and recovery from surgery, so
it makes sense that recovery is greatly enhanced by sleeping on
a memory foam mattress.
Of course, it was only a matter of time until someone thought to
apply this factor to the human body.
Medical researchers have more money to experiment than consumer
businesses, so it was in medical research that memory foam was
found to be a great inhibitor to bedsores.
Bedsores occur when the blood supply to the capillaries is
restricted over a period of time. Bedsores are also called
pressure ulcers.
Since the unique character of memory foam is it's ability to
melt away from anywhere that pressure is applied, bed sores are
reduced or eliminated.
It's broad use, in the medical field, finally led to the cost
effective use of memory foam for consumer mattresses. Now,
memory foam mattresses have come into the mainstream in the
mattress industry.
Memory foam mattress pricing, for a quality
product, in queen size, is usually about $2,000 to $2,500 which
is in line with most of the high quality innerspring products.
Are you looking for help to sleep but don't want
to spend out on a new mattress? Is the new mattress
you bought recently harder and therefore not as
comfortable as you hoped it would be?...
