Pocket Sprung Mattress

Individual Springs Move Independently

Open coil mattresses link every spring together, which means pressure in one place moves the whole surface and a partner feels every movement.

Pocket springs sit in individual fabric pockets and compress independently, which supports each part of the body separately and isolates movement between sleepers.

That independence is the whole distinction, and it is why pocket sprung mattresses have largely replaced open coil at anything above budget level.

Spring Count Is Marketing Beyond A Point

Very high spring counts are advertised heavily and beyond roughly a couple of thousand in a double the additional springs must be smaller and thinner to fit.

Smaller springs are individually weaker and the practical benefit of going from two thousand to five thousand is marginal at best.

Spring gauge, the quality of the upholstery layers above them and the overall construction matter considerably more than a headline number.

Airflow And Temperature

Air moves freely between springs, which means a sprung mattress runs noticeably cooler than a solid foam one.

That makes them the better choice for anybody who sleeps hot, and the comfort layers above the springs still affect this.

A pocket sprung mattress with a thick memory foam topper sleeps much like a foam mattress, which is worth knowing when choosing a hybrid.

Support For Heavier Sleepers

Springs provide support by resisting compression, which scales better with body weight than foam does.

Heavier sleepers frequently find foam bottoms out and provides no support at the hips, where a properly gauged spring system continues to hold.

Weight ratings exist on many mattresses and are worth checking, since exceeding them shortens life considerably and reduces support immediately.

Turning, Rotating And Lifespan

Traditional double-sided sprung mattresses are flipped as well as rotated, which spreads wear across both faces and extends life considerably.

Most modern mattresses are single sided with a comfort layer on top and are rotated only, which is simpler and wears one face.

A sprung mattress that has developed a visible dip has springs that have lost tension, and that cannot be recovered by rotating.

Zoned spring systems use different spring gauges under different parts of the body, with firmer springs under the hips where weight concentrates and softer ones under the shoulders. That produces more even spinal alignment than a uniform system for many people and it only works if the zones line up with the body using it, which varies with height. A very tall or very short sleeper may find the zones fall in the wrong places entirely, which is why zoning is more useful on larger mattresses with symmetrical layouts than as a universal feature.

Edge support comes from a firmer perimeter row of springs or a foam encasement around the edge, which stops the side collapsing when sat on and makes the full width of the bed usable. On a smaller double shared by two people that usable width is a genuine benefit rather than a specification detail.

Tufting, the process of stitching through a mattress to hold the fillings in place, prevents the upholstery layers shifting and forming lumps over years, and hand-tufted mattresses last considerably longer than glued constructions.

The Verdict

The cooler and more supportive choice for many people, where construction quality matters far more than spring count.

Spring counts are oversold, thick foam toppers negate the cooling, and sagged springs cannot be restored.

Ignore the spring count above a couple of thousand. Gauge and upholstery matter far more.