Understanding the Different Coil Systems in Mattresses: What You Need to Know Before You Buy
Posted by Carson Mattress Outlet
When shopping for a new mattress, one of the most important (but often overlooked) features is the coil system inside. Coil systems—also called innersprings—play a huge role in how a mattress feels, how long it lasts, and how well it supports your body during sleep.
At Carson Mattress Outlet, we believe informed customers make better sleep choices. So let’s break down the different types of coil systems you’ll find in mattresses, and how each one impacts comfort and support.
1. Bonnell Coils: The Classic Spring System
What it is:
Bonnell coils are the traditional hourglass-shaped springs found in many entry-level innerspring mattresses. These coils are connected to one another with a wire network, creating a sturdy and supportive structure.
Pros:
Affordable and widely used
Firm and supportive feel
Good for guest rooms or occasional use
Cons:
Less contouring support
Motion transfer is higher (you may feel a partner’s movement)
Not ideal for long-term daily comfort
2. Offset Coils: Enhanced Durability and Support
What it is:
Offset coils are similar in shape to Bonnell coils but are designed to conform more to your body. The coils are hinged together to reduce motion and increase durability.
Pros:
More contouring than Bonnell coils
Better long-term support
Reduced motion transfer compared to open coils
Cons:
Often heavier and less flexible for bed-in-a-box options
Slightly more expensive than Bonnell
3. Continuous Coils: One Piece for Uniform Support
What it is:
This design uses a single wire to create an entire row of coils, resulting in a mattress that is durable and uniformly supportive.
Pros:
Very durable and resistant to sagging
Budget-friendly
Good for children and teens
Cons:
Minimal contouring
Higher motion transfer
Can feel too firm for some sleepers
4. Pocketed Coils (Individually Wrapped Coils): The Premium Choice
What it is:
Each coil is individually wrapped in fabric, allowing it to move independently. This design offers superior body contouring, pressure relief, and motion isolation.
Pros:
Excellent support and contouring
Great motion isolation—ideal for couples
Often used in hybrid mattresses
Cons:
Typically more expensive
Slightly heavier mattress
At Carson Mattress Outlet, our most popular models—including DreamVibe hybrids—feature pocketed coils for the perfect blend of comfort and support.
5. Zoned Coil Systems: Targeted Support Where You Need It Most
What it is:
Zoned coil systems use coils of varying firmness in different areas of the mattress—like firmer coils under the hips and lower back, and softer coils under the shoulders.
Pros:
Enhanced ergonomic support
Great for spinal alignment
Reduces pressure points
Cons:
Usually found in higher-end mattresses
Not every brand offers this feature
Which Coil System is Right for You?
Choosing the right coil system depends on your sleep style, comfort preferences, and budget:
Budget-conscious shoppers: Look for Bonnell or continuous coil options.
Couples or light sleepers: Go for pocketed coils to reduce motion transfer.
Back or stomach sleepers: Consider zoned or offset coils for firmer lumbar support.
Side sleepers: Pocketed or zoned coils offer the best pressure relief at shoulders and hips.
Find the Right Mattress at Carson Mattress Outlet
At Carson Mattress Outlet, we carry a wide selection of mattresses featuring all types of coil systems—including exclusive DreamVibe hybrid models with advanced pocketed coil technology. Whether you’re looking for firm support or plush pressure relief, our team will help you find the perfect fit for your sleep needs and budget.
Stop by our showroom today or call us at (775) 350-7711 to talk to a local mattress expert. Sleep better, live better—with Carson Mattress Outlet.
