The Silentnight SleepResponse Support 1400 Pocket Sprung Mattress is a firm, store-exclusive option built for shoppers who want a supportive, traditional feel but with a softer, more inviting top layer. On the shop floor it comes across as reassuringly solid rather than plush, with a noticeable lift from the spring unit and just enough memory foam to take the edge off pressure points. The headline is straightforward, this is a mattress that prioritises support first, comfort second, and it largely delivers on that promise.
Construction and materials
This mattress combines responsive pocket springs with contouring memory foam, finished with a sumptuous pillow top. The spring unit uses Mirapocket zoned support, which is designed to give more targeted cushioning where it is needed most, typically around heavier areas of the body. Up top, the aloe vera-infused cover is a nice premium touch in feel terms, giving the surface a smoother, more dressed finish than a basic knit cover.
It is also pitched with breathable materials to enhance airflow, which matters here because the comfort layer includes memory foam, a material that can feel denser and less airy than fibre or latex alternatives.
Comfort, firmness and feel
Despite the pillow top, the overall sensation is firm and supportive. The pillow top adds initial softness, but it does not disguise the underlying tension for long, the body settles onto a stable, held-up base rather than melting deeply into the top. The memory foam element is more about gentle contouring than a deep hug, so the feel stays relatively “on the mattress” rather than “in the mattress”.
This will please anyone who finds medium mattresses too vague or sinky, but it can feel unyielding if the body needs more give at the shoulder and hip.
Support and pressure relief
The combination of pocket springs and zoned support creates a consistent, braced posture, particularly through the midsection. The memory foam helps smooth out pressure, but the mattress does not feel like a pressure-relief specialist. It is better described as a firm support mattress with a comfort layer, rather than a comfort mattress that happens to be supportive.
That matches the marketing around taking pressure off shoulders and hips, but in practice the relief depends heavily on sleep position. Back sleepers get the cleanest benefit because the mattress holds the lumbar area up without letting the hips drop.
Motion isolation
The individually wrapped pocket springs help reduce movement travelling across the mattress, and the memory foam layer also dampens some vibration. It is not a dead, foam-only feel, there is still a bit of spring response, but it does a respectable job of keeping partner movement from feeling overly disruptive.
Temperature regulation
Breathable fibres and a spring core help with airflow compared with dense all-foam designs. That said, the presence of memory foam means it will not feel as instantly cool or as consistently airy as a mattress that relies more on natural fibres or a thinner comfort layer. For most people it should land in the “fine year-round” bracket rather than actively cooling.
Edge support
In store, the perimeter feels stable enough for sitting and for using the full width of the bed without an obvious roll-off sensation. It is not the kind of rigid, engineered edge found on some premium hybrids, but it holds shape well for a comfort-topped mattress.
Practicalities
Silentnight includes a 100 Night Comfort Guarantee, which is the kind of reassurance worth having on a mattress with a firm feel. The design is single-sided, so there is no flipping routine to keep on top of, which makes day-to-day care simpler. It also comes with a 5-year guarantee. The cover is aloe vera-infused, which adds a more premium “finished” feel, even if it is not the sort of feature that changes the support you will actually experience night after night.
Who it suits
This is a strong match for back sleepers who want firm, steady support and do not want to sink far into foam. It also works for some front sleepers who need a flatter, more supportive surface to help keep hips from dipping too much. Anyone who likes a mattress that feels solid, supportive and slightly cushioned on top, rather than deeply plush, will get on well with it.
Who it does not suit
Side sleepers, particularly those with more pronounced hips and shoulders or an hourglass shape, are likely to find this too firm. The pillow top adds comfort, but the tension underneath stays dominant, which can leave side sleepers feeling pressure at the shoulder and hip rather than getting the sinkage needed for a straighter spine. Shoppers who want a pronounced memory foam “hug” will also find the contouring here more restrained than expected.
What customers liked
Feedback highlights the supportive feel and the way the mattress is designed to reduce movement disturbance between sleepers. The aloe vera-infused cover and the combination of memory foam with 1,400 Mirapocket springs are also positioned as comfort-enhancing features, alongside the breathable fibres for temperature control and the easy-care single-sided build.
Final verdict
The Silentnight SleepResponse Support 1400 is a firm, supportive mattress that uses a pillow top and memory foam to soften the first contact without sacrificing its core identity. It feels best suited to back sleepers who want dependable posture support and a slightly cosier surface than a no-frills firm pocket sprung mattress. The trade-off is clear, this firmness can be a deal-breaker for side sleepers, and the comfort layer does not add enough sink to change that. For the right sleeper it is a convincing, no-nonsense choice, but it is not a “one mattress fits all” crowd-pleaser.
