Innerspring Mattresses- Quick notes

Innerspring Mattresses- Quick Notes

Innerspring mattresses are the most popular type of mattress on the market.  The team at We Know Mattresses wants to help provide information to you about mattresses you may be considering buying.  Today we offer some quick points on Innerspring Mattresses.

Innerspring Mattresses brief history-

Innerspring mattresses (those with a coil core) are the most popular and comprise as much as 80% of the mattress market.  Developed in or around the 1860’s, they brought a new level of comfort to mattresses.  Innerspring mattresses were more expensive than other options and originally only the wealthy mattress consumer could afford them.  After World War I, Zalmon Simmons Jr mass produced the coil mattresses, bringing them to a much wider consumer base.  In 1926, Simmons introduced the Beautyrest mattress, a pocket coil mattress that sold for $39.50.  While still 5 or 6 times the price of other mattresses of the day, they were marketed as much more comfortable and providing a better nights rest and were purchased by millions of Americans.

Steel coils provide the main support for the sleepers body.  Correct support is necessary for both a good nights sleep and a healthy spine.

Innerspring mattresses considerations-

When choosing between different innerspring mattresses there are a number of aspects to consider:

Coil Properties– Gauge, Coil Count, and Coil Design

  • Thickness of the steel used in the coil, a lower number indicates a thicker wire. Most luxury mattresses have a gauge of 14.
  • Coil Count- Standard coil counts for a mattress run between 250 and 1000.  It is common for mattresses with lower coil counts to have thicker gauge wire.  Estimated coil counts for mattresses would be: 300 for a Full size, 375 for a Queen size and 450 for a King size.
  • Working Turns- Measures how tightly the coil is wound.  A greater number of working turns results in both a softer and more durable mattress
  • Tempered- Tempered springs are those that have been heated and cooled to ensure retention of proper shape.

Coil design– Hourglass, Pocketed, Continuous

  • Hourglass (Bonnell and Offset)- Bonnell is considered the original coil design.  It is the most common in the industry, found typically in less expensive mattresses.  Offset’s circles at the top and bottom are flattened to create a hinging action within the mattress core.  This allows the mattress to better conform to the sleepers body.  Offset coils tend to be found in more expensive mattresses.
  • Pocketed Coils- (aka Marshall) Individually wrapped in a fabric pocket.  Pockets may be connected, but the coils are separate and can move independently.  Provide greater separation of movement.
  • Continuous Coils- Springs are made from a single continuous length of wire shaped in to a series of loose S-shaped ringlets.  Allows for more coils per mattress.
Innerspring mattresses are made of steel coils

A typical Innerspring (Coil) Mattress Cut-away

How these properties affect each sleeper needs to be determined by the particular consumer.  We Know Mattresses advocates that it is always best to shop for a mattress in person to get the right sense of feel for each type.  You can find more information on Innerspring Mattresses here.

Quality Innerspring mattresses should last you 7 to 10 years.