How many coils in a mattress is good?


When it comes to choosing a mattress, there are several factors to consider, including the number of coils it contains. The question of how many coils in a mattress is good often arises among consumers seeking the perfect sleep surface. But before we delve into the ideal coil count, it is essential to understand the significance of coil systems in mattresses.

Coil systems, also known as innerspring systems, are the foundation of a mattress. They consist of interconnected metal springs or coils that provide support and bounce to the mattress. The coil count refers to the number of coils within the mattress. But does a higher coil count always translate to better comfort and support? Let's explore this question in more detail.

The Importance of Coil Count

Coil count plays a significant role in the overall feel and performance of a mattress. The number of coils directly affects factors such as support, pressure relief, motion transfer, and durability. However, it is crucial to note that coil count alone cannot determine the quality of a mattress. Other factors, such as coil gauge, coil type, and the comfort layers present, also come into play.

Understanding Coil Gauges

Coil gauge refers to the thickness of the metal wire used in the coils. It is essential for determining the level of support and durability a mattress provides. Common coil gauges range from 12 to 15, with lower numbers indicating thicker wires. Mattresses with a lower gauge tend to offer firmer support and are often preferred by individuals who require more back support. On the other hand, mattresses with a higher gauge have thinner wires and provide a softer feel. The appropriate coil gauge depends on personal preference and specific sleep needs.

Coil Types and Their Impact

There are different types of coil systems used in mattresses, each offering unique benefits. The two widely used coil types are the Bonnell coil and the pocketed coil.

1. Bonnell Coils

Bonnell coils, also known as open coils, are the traditional coil system found in many entry-level mattresses. These hourglass-shaped springs are interconnected, which means they move as a unit. Bonnell coil mattresses generally have a lower coil count than those with pocketed coils. While they provide decent support and durability, they may not conform as well to the body's contours. Additionally, Bonnell coils may have more motion transfer, meaning movement on one side of the bed can be felt on the other.

2. Pocketed Coils

Pocketed coils are individually wrapped springs that operate independently of each other. These coils are more responsive and contouring than Bonnell coils. The individual coil movement helps reduce motion transfer, making pocketed coil mattresses an excellent choice for couples or individuals who are easily disturbed by their partner's movements during sleep. Pocketed coil mattresses typically have a higher coil count and offer better support, spinal alignment, and pressure relief.

Finding the Optimal Coil Count

The ideal coil count ultimately comes down to individual preferences and needs. While some people may find comfort and support with a mattress containing fewer coils, others might prefer higher coil counts for enhanced support and durability. Here's what to consider when choosing the right coil count:

1. Body Weight

Your body weight plays a significant role in determining the appropriate coil count. Heavier individuals typically require more support to maintain proper spinal alignment and prevent sagging. A mattress with a higher coil count, especially one with pocketed coils, can offer better support and prevent the mattress from bottoming out. On the other hand, lighter individuals may find a mattress with a lower coil count adequate for their support needs.

2. Sleep Position

Your preferred sleep position is another crucial factor to consider when determining the optimal coil count. Different sleep positions exert varying pressures on the mattress, requiring different levels of support. Here's a breakdown of recommended coil counts for different sleep positions:

a) Side Sleepers: Side sleepers generally benefit from increased pressure relief to minimize the risk of developing pressure points. A mattress with a higher coil count, preferably one with pocketed coils, can conform better to the body's curves and provide adequate support to the hips and shoulders.

b) Back Sleepers: Back sleepers typically require a balance of support and contouring. A mattress with a moderate coil count should provide enough support while also offering some degree of conformity to maintain the natural alignment of the spine.

c) Stomach Sleepers: Stomach sleepers generally need a firmer surface to prevent their midsection from sinking into the mattress excessively. A mattress with a lower to moderate coil count can provide the necessary support to keep the spine properly aligned.

3. Combination Sleepers and Motion Isolation

If you are a combination sleeper who frequently changes positions during the night, you may find that a mattress with a higher coil count helps minimize motion transfer. A mattress with pocketed coils can isolate movement better, ensuring that your partner remains undisturbed by your shifting throughout the night.

4. Budget Considerations

While coil count can impact the price of a mattress, it doesn't necessarily determine its quality. Opting for a mattress with a lower coil count, especially if it meets your support and comfort needs, can be a budget-friendly choice. Remember that other factors, such as coil gauge and comfort layers, also affect the mattress's overall performance.

Understanding Sleeping Partners: Coils and Motion Transfer

For couples sharing a bed, motion transfer can significantly impact sleep quality. Motion transfer refers to the amount of movement that can be felt on one side of the bed when someone moves on the other side. Mattresses with a high coil count, specifically those with pocketed coils, tend to minimize motion transfer, making them an excellent choice for couples. Individually wrapped coils allow each person's movements to be isolated, reducing disturbances and ensuring a more restful sleep.

The Balance Between Coil Count and Comfort Layers

While coil count is an essential consideration, it must be balanced with the comfort layers of the mattress. Comfort layers, such as foam or padding, sit on top of the coil system and are responsible for cushioning and contouring the body. The right combination of coil count and comfort layers is crucial for achieving a comfortable, supportive, and pressure-relieving sleep surface.


When determining how many coils in a mattress is good for you, remember that coil count alone does not guarantee optimal comfort and support. Factors such as coil gauge, coil type, body weight, sleep position, and comfort layers all contribute to the overall performance of a mattress. Consider your individual preferences, needs, and budget when selecting a mattress with an appropriate coil count. By understanding these factors, you can make an informed decision and find the perfect mattress to suit your sleep requirements.


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