Mattress spring
Compression springs for mattresses and beds — from Bonnell systems to pocketed coils. Design the exact dimension and get an instant quote.
Recommended type and material
Mattresses use hard-drawn wire compression springs, which give good resilience at low cost in high volume. The open pitch provides the travel needed for comfort without hitting solid height.
Reference specification
| Type | Compression |
|---|---|
| Material | Hard drawn |
| Wire diameter | 2 mm |
| Outer diameter | 22 mm |
| Length | 90 mm |
| Spring rate | 4.96 N/mm |
| Max safe load | 90 N |
| Solid height | 14 mm |
| Spring index | 10 |
Values calculated for the reference example; adjust everything in the designer.
Things to consider
- High volume: per-piece price drops sharply in batches of thousands.
- Hard-drawn wire (SAE 1065) balances cost and fatigue life.
- Free-length and rate control keep firmness consistent.
Design your spring for this application
Open the example in the designer, adjust the dimensions and get an instant quote.
Design & quoteFrequently asked questions
Which wire is used in a mattress spring?
Most common is hard-drawn steel; oil-tempered wire is used for longer durability.
Can I order in large quantities?
Yes — mattress springs are series-produced and the per-piece price falls as batch size rises.