Innerspring Unit:
a coil and wire unit that makes up the supportive heart of a mattress
Coil Count:
the number of innerspring coils in a mattress
Coil Gauge:
the thickness of the wire used in innerspring mattresses
TIP: a lower gauge number denotes a thicker wire and a firmer mattress feel; a higher gauge results in a softer feel
Comfort Layers:
foam, padding and fibers added to an innerspring system to provide cushioning; also called upholstery layers
Latex Foam:
natural body-conforming material often used to increase softness and relieve pressure points
Visco Memory Foam:
synthetic material that responds to body temperature and weight