How the coils springs are arranged The Offset Coil is an improvement on the original coil design called the Bonnell Coil. These coils are hourglass shaped; offset coils are more expensive, but conform better to the body. You can find some great coil mattresses at this 4000 spring mattress sale.
Pocketed Coils or "Marshall Coils" are coils individually wrapped in fabric pockets. Separating the springs allows for the same comfort and support as other innersprings with more motion separation. Continous Coils have the highest coil count than any innerspring mattress. Each coil is attached through a series of loose S-shaped ringlets thereby creating a stronger, more durable sleep mattress.
Buying the right innerspring mattress isn't a matter of looking for one with the most coils. Recent breakthroughs have afforded shoppers more choice in how to best secure a good night's sleep with their new innerspring mattress. Taking the time to consider how these changes will affect the sleeper is well worth the effort, considering the fact that buying the best sleep mattress is perhaps one of the biggest decisions consumers will make per decade.
Comfort, support and durability are the three main criteria to take into account when shopping for a new mattress. If innersprings don't seem to be the right fit, then perhaps it would be wise to take the time to get an overview of the many types of mattresses on the market.