Number1Direct carries a wide selection of Simmons Mattresses including the Innerspring Mattress.
Innerspring mattresses feature a core of wire coils to provide support, while remaining buoyant and resilient. Around the border of the mattress, a wire supports the coils and helps maintain the shape of the mattress. Padding or some type of insulator rests on top of the coils, which is then topped with the upholstery of the mattress. Depending on the type of top layers manufacturers use, the innerspring mattress can be ultra soft or less so.
Most mattresses that have heavier gauge (thicker wire) coils would offer a greater deal of support than lighter gauge coils.
Low coil counts and heavy gauge wires can seem firm in the store, but it is likely that such a mattress will not hold up long because it simply does not have enough coils.
Many premium mattresses feature 14-gauge (1.63 mm) coils. The lower the number, the larger the diameter of the spring. With coils in the up to 15.5 gauge range, it is important that the total coil count be high the coils would otherwise give easily under pressure. A 12.5 gauge innerspring coil, the thickest typically available, may feel rock hard in a double mattress even with a coil count of 400 or less.
Types of Coils
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Open Coil: This hourglass-shaped wire coil is joined to adjacent coils by small wire spirals called helicals. The open coil design provides good initial support but these coils fatigue more quickly than more technically advanced coil constructions.
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Offset Coil: An offset coil is slightly more cylindrical in shape than an open coil, which may make it more durable. It is also laced to its neighbors by helicals. These are usually the most expensive coils.
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Pocket Coil: A pocket or independent coil is a cylindrical spring wrapped in its own fabric pocket. This construction is designed to give the most contour of any support system. Each coil works independently which means that you will feel your partner move much less. This type of coil is a good choice for people who toss and turn and for their bed partners because the motion separation may prevent waking from a deep sleep which is very important for well being. Simmons uses this type of coil.
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Continuous Coil: The continuous coil is exactly what it says – each row of coils is made of a single wire attached to the next row by helicals. This design allows each coil to deflect weight to a great number of springs resulting in less stress on each coil.






