mattresses provide a broad range of different feels that deliver varying levels of conformance and support. A high quality
All-Foam mattress will generally offer a sense of cradling comfort while delivering the lowest motion transfer from
side to side. Foam mattresses often conform precisely to the natural curves of
a sleeper’s body, thereby providing optimum pressure relief. Pressure points in
the hips and shoulders are usually minimized in a well constructed All-Foam mattress. Consumers who purchase
high-quality All-Foam mattresses often report that they feel as if they are
“Sleeping In” the mattress. In many All-Foam mattresses, a variety of advanced
polyurethane and natural plant-based comfort and support foams work together to
create unique feels. Whether choosing a product that features visco-elastic foam, latex
foam, or other advanced foam configurations, high quality All-Foam mattresses
can provide a great night’s sleep. Polyurethane foam, viscoelastic memory foam,
and latex foams are the three most common foams utilized when creating a mattress. In recent years these have been joined by infused foams that deliver additional high performance benefits.:
Polyurethane Foam -
Many mattress manufacturers use polyurethane foam in the quilted
layers and as the comfort layers of both Spring
+ Foam and All-Foam
mattresses. With the advent of roll-packed mattresses, polyfoam is often
used as a base layer in their mattresses instead of using spring coils.
Several different varieties and densities of polyurethane foam are
available. Higher density polyurethane foams are more durable than lower
density foams. Many advanced features are available in poly-foam layers including
convolution, and varying densities and softness ratings. High quality
polyurethane foams carry the Certi-PUR US emission certifications.
Consumers are often familiar with polyurethane foam as the type of foam used in
sofa cushions or encounter polyurethane foam when shopping for mattress
toppers, including “egg crate” mattress toppers. Polyurethane foam is comprised
primarily of petrochemicals.
ViscoElastic Foam –
Also commonly referred to as “Memory Foam,” viscoelastic polyurethane foam
is a type of polyurethane foam that
contains added compounds which change the
way it responds to pressure and which makes it reactive to changing
temperatures. Chemists have engineered Memory Foam for additional conformance
and pressure relief, which often results in slower recovery. For example,
Memory Foam continues to display a handprint for a few seconds after a hand is
removed. Memory Foam is usually denser and more expensive than regular
polyurethane foam. Memory Foam is also temperature reactive, which means
it absorbs heat and softens as it becomes warmer. Newer versions of
Memory Foam known as “Open Cell” visco foams are designed to dissipate heat once
absorbed. Many Memory Foams will become firmer in cooler environments and
are not recommended for environments where the temperature often dips below 60
degrees Fahrenheit. As with polyurethane foam, Memory Foam is made up primarily
of compounds derived from petrochemicals.
Latex Foam -
Latex foam is one of the most
durable types of foam available. Latex reacts instantly when pressure is
applied and the support it provides changes with your every move. Latex
foam does not “sink in” either initially or during the night and maintains
constant support regardless of temperature. The responsive nature of latex
facilitates easy movement throughout the night, without producing sleep
interruption. Latex foam can be produced with natural latex, which is
harvested from rubber trees or synthetic latex, which is produced from
petrochemicals, or can consist of a blend of both natural and synthetic
Infused Foams –
The chemists and engineers who work
for foam manufacturers are on a constant quest to create polyfoams and latex
foams with unique comfort, support, and performance properties. Many natural
and synthetic additives are now commonly found in the comfort and support
layers of modern mattresses. These include cooling gel, copper, and graphite.
Each type of infusion offers one or more specific benefits for the consumer.
In addition to use in All-Foam
mattresses, consumers will find that each of the types of foam outlined above
can be incorporated into a spring mattress as a comfort or support layer.
For additional information about other Support Options in
mattress construction, visit our
Support Options tab.
For additional information about the CertiPUR-US program, visit the organization's website at www.certipur.us . When it comes to polyurethane foams in our mattresses, Sleeptronic® utilizes exclusively CertiPUR-US certified foams in the products we manufacture. The following video provides an excellent overview of the CertiPUR-US program.