Please enter your postal code to view pricing and availability in your region.
Glossary of Terms
Allergen: A substance that causes an allergic reaction, for example dust.
Baffles: A chamber used to obstruct the movement of a substance (for example, water).
Bed frame: A frame that maintains the position of the foundation, headboard and footboard.
Bed riser: Separate blocks or cones placed under the bed to raise it higher off the floor.
Bedding: A general term to describe all the sheets, pillows, comforters, etc. used on a bed.
Body Alignment: The relational positioning and balance of the spine, muscles and joints.
Box Spring: A foundation that contains springs.
Cable Coil: Simmons’ most advanced pocket coil system, uses three metal rods instead of one to make each coil, for maximum support and durability.
California King: Any mattress, bed frame or foundation that measures 72" wide by 84" long.
Canopy: A fabric covering suspended above the bed, usually with posts.
Coil: A spring to provide resistance to applied weight.
Coil Configuration: The arrangement of coils in a specific pattern.
Comfort: A general term to describe the overall "feel" a mattress.
Contouring: The ability to follow or fit the natural curves (contours) of the body.
Convoluted foam: A type of synthetic foam that includes patterned raised fibers shaped in waves, boxes, cones and stripes. These designs are said to have therapeutic benefits.
Coverlet: The general term to describe any bed covering, such as a comforter, blanket, quilt, duvet, or bedspread.
Down: The extremely soft, fluffy under layer of bird feathers (notably goose or duck).
Duvet: A warm, soft bed covering that is filled with down or feathers.
Featherbed: A soft, thick mattress topper filled with down or feathers.
Filling: The material used to occupy (fill) an empty space. Filling provides the support, firmness and comfort of mattresses, pillows, comforters, etc.
Firmness: A general term to describe how much resistance the mattress applies to body weight and the resulting "give".
Footboard: A board or panel that sits at the foot of a bed.
Foundation: A base that supports the mattress. It absorbs the weight and pressure applied to the bed.
Futon: A thin mattress placed on a frame that can covert to a bed or sofa/chair.
Gusset: A triangle insert that adds strength to edges and corners (such as a seam).
Gusseted: Items that are reinforced with gussets.
Headboard: A board or panel that sits at the head of a bed.
Helical: A small helix or spiral shaped wire that is used to connect coils.
High-density foam: A general term to describe foam that is especially dense and thick.
House brand: A retailer's custom brand that is only available through their store.
Hypo allergenic: A term to describe objects that have a decreased likelihood of provoking an allergic reaction.
King size: Any mattress, bed frame or foundation that measures 76" wide by 80" long.
Latex foam: Foam made of latex (a flexible substance derived from the rubber tree). It is the coolest and one of the most resilient types of cushioning that can be used in mattresses.
Loft: The height or "lift" gained by the depth of the filling material.
Matelassé: A fabric finish that suggests or imitates the indentations of a quilt.
Mattress: The actual sleep surface of the bed; a bed's support, firmness and comfort are supplied by the mattress.
Mattress Protector: Mattress Protector: A cover that protects your mattress from stains, ensuring a healthy sleeping space and a full warranty.
Memory foam: A type of elastic, viscous synthetic foam with exceptional contouring abilities.
NXG Foam: A high grade memory foam that breathes better and recovers quicker than regular memory foam, exclusive to Simmons.
Pocket Coil: An individually-wrapped coil built to minimize motion in the bed and provide more a personal comfort and support.
Polyurethane foam: A type of synthetic, flexible foam.
Pressure points: Points on the body that bear the most weight and pressure when lying down; common pressure points are the shoulders, hips and knees.
Queen size: Any mattress, bed frame or foundation that measures 60" wide by 80" long.
Quilt: A bed covering made of scraps of fabrics sewn together with a decorative cross stitch design
Sleep set: A general term to describe the combination of foundation, mattress, headboard, footboard and bed frame.
Slipstick: A rubber caster that goes beneath the wheels or legs of your frame to prevent the bed from moving and damaging your floor`s finish.
Solo Coil: A pocket coil system exclusive to Kingsdown that provides maximum support and minimal movement by seperating the coils into two seperate chambers and reinforcing the coils that supports the lower back.
Support: A general term to describe how the mattress distributes and stabilizes body weight and maintains proper body alignment.
Synthetic: A term to describe any material that is artificially created (not found in nature).
Therapeutic: To have healing abilities or benefits.
Thread count: The number of vertical and horizontal threads per square inch of fabric.
Ticking: The protective fabric cover that encases the support and comfort layers of the mattress.
Twin Extra Long: Any mattress, bed frame or foundation that measures 39" wide by 80" long.
Twin size: Any mattress, bed frame or foundation that measures 39" wide by 75" long.
Visco-elastic: The characteristics of a material that combines viscous and elastic behaviors; the scientific term to describe memory foam.