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Sometimes referred to as “Comfort Dimples” This
is the normal compressions of the comfort layers as they lose
resilience over a period of time. It can often be mistaken
for “sagging”.
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Designed with an hourglass shape, this coil’s largest
diameter is at the top and bottom of the coil and tapers towards
the center. Common innerspring units using the Bonnell coils
are 252, 312, and 364 full size units.
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Designed to support the mattress. It is also referred to as
a foundation.
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The material on the sides and ends of a mattress.
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The side edges of an innerspring unit or box spring that the
springs or modules are attached to.
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A twin size mattress that has a frame or platform attached
used in bunk beds.
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A platform base or board covered with material and used under
a twin size mattress in a bunk bed.
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A mattress that measures 72” wide by 84” long.
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A support beam running head to foot down the middle of a frame
for added support. A center rail is mandatory for queen and
King sized sleep sets. Can also refer to the center slat running
head to foot in a box spring.
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A Border rod attached to coils by a steel clip as opposed
to a small spun helical wire.
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The number of innerspring coils in a mattress. Most often
quoted in a queen Size (until recently this was almost always
a full size) Some retailers quote coil counts for the size
the customer is purchasing this can be misleading.
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The layers of material in a mattress that provide the comfortable
surface feel, usually multiple layers of foam and synthetic
fibers.
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These are entire rows of coils made from a single wire running
head to toe or side to side.
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Egg crate shaped (hills and valleys) This foam is used most
in plush or pillow top models to provide comfort. Designed
for hospital use it helps reduce pressure points and can allow
for better circulation or blood flow.
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Woven fabric produced on a loom. Its design or pattern is
woven into the fabric.
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The Measure of weight per cubic foot of foam. Density is independent
of firmness but is considered an important element of quality.
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Also known as a full size or regular size sleep set measuring
54” wide by 75” long.
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Also referred to as dual tempered this is a process that allows
the compressed coil return to its original profile.
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The length of time that a sleep set will last. It is determined
by the construction and materials used.
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Some manufactures offer extra or heavier gauge coils along
the perimeter of the sleep set
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A very generic term used in bedding world. For some Firmness
is a comfort term synonymous with hardness. For others it
is a structural term associated with the support of the innerspring.
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The bottom part of a sleep set which gives the mattress support
and durability. Also referred to as a box spring.
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The thickness measure of the wire/steel used in an innerspring.
The smaller the number the heavier the wire or steel.
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The point of sale operating system used by Mattress Warehouse
and Sleep Outfitters.
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The steel wire assembly that forms the top surface of a boxspring.
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The process of lacing the coils or springs together with twine,
all done by hand.
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Wire spirals used to hold together rows of coils or attach
innersprings to the border rod.
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The spring and wire unit made up of coils, helical’s
and border rods forming the heart of a mattress.
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A tough fiber pad, wire or netting that separates the innerspring
from the upholstery layers in a mattress.
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A king sized mattress set measuring 78” wide by 80”
long.
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A natural foam product made from a rubber tree often used
in ultra premium sleep sets.
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A general term used to describe the height or thickness of
fiber material.
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A type of innerspring made of individual coils encased in
a synthetic fiber or pockets then attached to a perimeter
border wire.
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The common quilting process where multiple needles are used
to stitch the upholstery layers together.
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Similar in shape to the Bonnell coil but there is a squared
off section at the top and bottom to prevent turning. Some
manufactures use double or triple off set coil designs.
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A sleep set measuring 66” wide by 80” long. Introduced
in 2000 by Simmons by using a standard queen boxspring and
a platform can be used on a traditional queen size bed.
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A top finishing treatment on mattress’ in which a pillow
like soft material is attached to the top of a mattress.
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A bed consisting of head and footboard with a rigid platform
for the mattress to rest on with no box spring used.
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A term used to describe a finish treatment where much of the
upholstery layers are loosely stitched producing a softer
sleeping surface.
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A term created by the bedding industry to describe additional
support in the center portion of the innerspring.
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The top layers of upholstery that are stitched together with
Dacron or other fibers and foams.
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A Queen size sleep set measures 60” wide by 80”
long.
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To spring back. A term used to describe a property of a spring
unit or upholstery layer.
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A structural effect of wear causing loss of support and indentation
on the surface of an innerspring mattress. Often confused
with the normal settling of upholstery layers defined as body
impressions.
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A quality sleep set provides support- the ability to bear
weight for a restful sleep.
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A quilting process where stitching is in specific areas and
not connected as in multi needle quilting. It creates a more
tufted look and allows the upholstery layers to rise to a
fuller loft.
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The seam that is stitched to connect the border panels to
the top quilt panels of the mattress.
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The outer fabric covering a sleep set. These fabrics are made
of woven fibers called Damask, cotton fibers called chintzes
or polyester fibers called knits.
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Heavy wire elements usually bent at 90-degree angles used
in place of springs in a boxspring.
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Also known as a single bed. A twin bed measures 39”
wide by 75” long.
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A high quality, high density, heat sensitive resilient foam
sometimes called “memory” or “slow recovery”
foam.
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