What Is The Best Innerspring System

So Many Options To Choose From!

There are four main types of coil pattern and design within a spring mattress. You are most likely to see some if not all types are commonly available and are sometimes advertised as one of the below:

Innerspring Tpes, Roanoke Mattress

– Open Coils

Commonly referred to as the Bonnell spring, this is the oldest and most common type of system used mostly in cheap mattresses. It consists of multiple hour glass shaped springs made of tempered steel laced together to form the bulk of the innerspring structure. Compared to the more superior innerspring types the open coil design provides average durability, longevity, motion isolation and support, but doesn’t rate as high as the next three listed below.

– Offset Coils

Offset coil mattresses are usually more expensive than a Bonnell mattress. They have a similar type of design and structure but each spring is hinged together which provides better motion isolation and body contouring. For this reason they tend to be found in mid or high priced mattresses.

– Continuous Coils

As the name suggests, this system consists of rows of springs, made with one long tempered steel wire, shaped into springs which run the length or width of the bed. You will often find this type in low or mid priced mattresses due to the reduced amount of motion isolation and body contouring.

– Pocket Spring

Also known as a pocket coil or pocket spring mattress, these are made up of hundreds or sometimes thousands of individual springs which act independently of each other, and are wrapped in some kind of cloth or fabric. The pocket spring is generally more expensive than the previous three, as it offers supreme motion isolation, support and longevity.

Pocketed Coils, Innerspring Types, Roanoke Mattress

– Custom Patents

The above listed are the most common and generic types, however certain manufacturers have taken the traditional style of coiling and improved them. Such patents for example are the FreeFlex Innerspring and TrueSense coil design by Serta. Of our 5 innerspring mattress reviews the Comfort Bedding also uses a non-standard design known as the Verticoil. All of these designs are cutting edge technology aimed at providing new and improved ways of producing comfortable yet effective support whilst sleeping.


Coil Count

This literally means the number of coils (or springs) that the inner structure is made up of. Its common to see figures in excess of 500, even 2000 springs in some premium models. It’s important to remember that most figures are quoted for a queen size, and if buying a twin or full for example the figure should differ between models. Generally the higher the count the higher the price, but don’t forget it’s not just the total number of coils that matter, you still have to consider factors such as the design in place and wire gauge.

Coil Gauge

Aside from the comfort layer characteristics, another main factor that determines the firmness level is the coil gauge. Coil gauge measures the thickness of the springs used to make up the overall construction. The higher the figure, the thinner the spring. The lower the figure, the thicker the spring. For example an innerspring mattress with a coil gauge of 12 will be firm, and one with a gauge of 15 will be soft. In order to cater for every consumer you may see this figure advertised as anywhere between 12 and 18, with half numbers in-between. As a general guide if you need a mattress for back pain relief or just prefer a firm mattress go for a gauge of approximately 12 or 12.5. For a medium finishing choose something in-between 13 or 13.5. Some people prefer a bouncy or soft mattress, if so look for 14 gauge and above.