What are mattress coils and why are they important?

Coils comprise the support core of an innerspring or hybrid mattress, but did you know there multiple types of mattress coils? While all of them are counted upon to provide sufficient support and promote airflow, some types are better at alleviating pressure from sore joints or dampening the movements of a restless sleep partner. Most of the recommendations in our guide to the best mattress of 2024 are made with a core of individually wrapped pocket coils, followed by layers of foam. Traditional innerspring mattresses may use Bonnell, offset, or continuous wire coils, but luxury innerspring models tend to favor pocket springs for their responsiveness and versatility.

Read on to learn the differences between the four main types of mattress coil and the role they play in how supportive and responsive your bed feels. Today's best mattress sales What are mattress coils? Mattress coils (or springs) form the support core of an innerspring or hybrid mattress. They're usually made from tempered steel so they're less likely to lose their shape over time.

There are four main types of mattress coils, with each offering different benefits such as motion isolation and pressure relief. The type of coils in a mattress can influence its overall feel and durability. The four main types of mattress coils 1.

Bonnell coils Bonnell coils are a staple of traditional innerspring mattresses. Also known as hourglass coils for their shape – narrow in the middle and wider at the top and bottom – Bo.