Pocket Spring vs Bonnell Spring Mattress: What's the Difference?
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Spring mattresses remain hugely popular in Kerala because they are supportive, comfortable and breathe well in humid weather. But not all springs are the same. The two main systems are Bonnell springs and pocket springs, and the difference affects how the mattress feels every night.
What is a Bonnell spring mattress?
Bonnell springs are hourglass-shaped coils joined together by a wire framework, so the whole spring unit moves as one. This gives a firm, even and slightly bouncy feel.
- Pros: good value, firm and stable support, excellent airflow, classic bouncy feel
- Cons: more motion transfer, so you may feel your partner move; less contouring to body shape
Try: Nilkamal Sleep Nova Box Top Bonnell or the reversible Solace Bonnell Spring.
What is a pocket spring mattress?
In a pocket spring mattress, each coil is wrapped in its own fabric pocket and moves independently. The springs respond to the exact shape and weight of your body: more give at the shoulders and hips, more support at the waist.
- Pros: closer body contouring, very little motion transfer, targeted support, quieter
- Cons: usually costs more than Bonnell
Try: premium pocket-spring mattresses from Simmons Beautyrest, Sealy, King Koil and Serta, or the Nilkamal Cloud Coze 5 Zone.
Side-by-side comparison
| Bonnell spring | Pocket spring | |
|---|---|---|
| Coil design | Interconnected | Individually wrapped |
| Feel | Firm, bouncy, uniform | Contouring, adaptive |
| Partner disturbance | Noticeable | Minimal |
| Airflow | Excellent | Excellent |
| Price | More affordable | Higher |
| Best for | Single sleepers, guest rooms, firm-feel lovers | Couples, light sleepers, people wanting targeted support |
Which one should you choose?
If you sleep alone, like a firm and bouncy feel, or are buying for a guest room or children, a Bonnell spring mattress is great value. If you share your bed, are a light sleeper, or want support that adapts to your body, a pocket spring mattress is worth the extra investment.
Frequently asked questions
Do spring mattresses make noise?
Good-quality spring mattresses are quiet. Pocket springs are generally the quietest because the coils don't rub against each other.
Are spring mattresses good for back pain?
A well-built medium-firm spring mattress, especially pocket spring with zoned support, can offer excellent back support. Read our guide to choosing a mattress for back pain.
Feel the difference yourself at any My Bedroom showroom, or browse all mattresses online.