Spring and pocket spring mattresses
A metal core gives spring and pocket spring mattresses firm support and good airflow. The difference lies in how the core works: in a classic Bonell unit the springs are wired together, while in a pocket unit each spring sits in its own fabric pocket and responds independently of the springs beside it. Models come with varying spring counts, heights from 16 to 30 cm and sizes for single and double beds. There are also versions with a top comfort layer and a removable washable cover.
Spring and pocket spring mattresses
Metal springs carry the body, hold the mattress in shape and let air move between them, so spring and pocket spring mattresses run cooler than all-foam models. The decisive difference between constructions is whether the springs are linked together or work separately.
Bonell springs make up the classic build, in which individual springs are wired into a single unit. The mattress is firm, carries higher weight well and sits among the cheapest options. The drawback is that movement travels across the whole surface: when one of two sleepers turns over, the other feels it.
With pocket springs, each spring is sewn into its own fabric pocket and compresses independently of the springs beside it. The mattress therefore follows the body zone by zone and dampens motion transfer, which couples value. Spring counts in double size run roughly from 500 to 1,000, and a higher count means finer contouring. Models with reinforced edges are common too: they make getting up easier and stop you sliding towards the edge.
Alongside the core type, firmness guides the choice, usually described as soft, medium or firm. Lighter people tend to pick a softer version, heavier people a firmer one. Height matters as well: from 20 cm upwards a thicker foam comfort layer sits above the core and the surface feels softer. The cover deserves attention, since a removable cover with a zip can be washed and extends the lifespan.
Spring mattresses need a rigid slatted base with enough slats so the core does not sag unevenly. Regular rotation is recommended, and flipping too on double-sided models. A good pocket spring unit usually lasts eight to ten years.