Every coil in this support system is pre-compressed and sealed inside its own fabric pocket, so it works alone instead of as one connected grid. That built-in tension means the spring is always pushing back against your weight — never relaxing, never sagging, always supporting. Because each coil reacts only to the part of your body above it, the mattress contours where you need it and holds firm where you don't, keeping your spine in line all night. And when your partner rolls over or gets out of bed, the motion stops at their coils instead of traveling across to yours.
See It in Action
Pocketed Coil Demo
Nested vs. Regular Pocketed Coil
Edge Support Demo
Same demo shown on our in-store foam cube wall.
Features & Benefits
| Feature | What It Means for You |
|---|---|
| Individually wrapped coils | Each spring moves on its own — support is personalized to your body, not averaged across the bed |
| Pre-compressed, built-in tension | The coil is always pushing back against your weight — no relaxing, no sagging over time |
| True motion separation | Movement stays where it starts, so a restless partner doesn't wake you up |
| Proper spinal alignment | Contours at the shoulders and hips while holding the lumbar area level |
| Heat-tempered steel | Coils hold their shape and resilience for the life of the mattress |
| Designed in-house by Diamond Mattress | Coil gauge and layout are engineered and controlled by Diamond, not sourced off the shelf |
Common Questions
What's the difference between pocketed coils and a traditional innerspring?
A traditional innerspring connects all the coils together into one grid, so when one moves, the whole system moves. Pocketed coils are individually wrapped — each one sealed in its own fabric pocket — so every coil reacts only to the weight directly above it. That's how you get personalized support and true motion separation instead of a trampoline effect.
Will I feel my partner move?
No. Because each coil is individually wrapped, motion stays exactly where it starts. Your partner can roll over or get out of bed without the movement traveling across to your side — that's true motion separation.
Do pocketed coils sag over time?
Diamond's pocketed coils are pre-compressed and made from heat-tempered steel, so they're engineered to hold their shape and tension for the life of the mattress. The built-in tension means the spring is always pushing back — it doesn't relax or soften the way foam can.
