If you’re shopping for a mattress that promises an instantly fresher feel the moment you lie down, the Silentnight UltraGel Cool-to-Touch 2000 Mirapocket Pillow Top Mattress is clearly designed to catch your eye. It sits in that popular “comfort-first but still supportive” category, pairing a deep, cushioned pillow top with a substantial pocket spring core and a cooling cover that’s meant to take the edge off overnight overheating. After looking closely at its build, intended feel and the way its features work together in practice, it’s the kind of mattress that makes a strong case for people who want a softer, more sink-in surface without giving up the structured support you’d typically expect from a well-made pocket sprung bed.
What stands out most is that it doesn’t rely on one headline feature to do all the work. Instead, it layers several comfort and temperature-control elements on top of a zoned spring system, so you’re getting a combination of pressure relief, responsive lift and airflow, rather than that “slow-melting” sensation some all-foam mattresses are known for. In other words: it’s built to feel plush and inviting, but not smothering, and supportive, but not rigid.
How it performed in our considerations
Temperature
Cooling is the obvious theme here, and Silentnight approaches it in two ways: a cool-to-touch cover designed to feel crisp when you first get into bed, and an UltraGel™ foam layer with an open-cell structure that’s intended to allow air to move through the comfort layers more easily. In practical terms, that combination is most likely to appeal if you often feel a bit warm on contact with your mattress (especially in summer or in well-insulated bedrooms) and you dislike the “heat-holding” sensation that can build up in denser foams.
It’s worth being realistic, though: even excellent cooling fabrics tend to feel most dramatic at the start of the night, while overall temperature regulation is more about breathability through the whole build. The good news is that pocket springs naturally help airflow compared to a solid foam core, and with an emphasis on breathability in the comfort layer, this mattress has the right ingredients for a fresher sleep environment than many plush, foam-heavy alternatives.
Pressure relief and comfort feel
The pillow top is the first thing you’re likely to notice, because it creates that soft “landing pad” sensation that makes the bed feel immediately more luxurious. Underneath, the UltraGel™ layer is described as responsive and bouncy, which suggests a comfort feel that adapts without the slow, sinking drag associated with some memory foam designs. For many sleepers, especially those who get achy around shoulders and hips, that quicker response can feel more forgiving: you get cushioning, but you don’t feel stuck in one position when you roll over.
Silentnight also positions the gel-infused layer as beneficial for easing aches and pains by distributing weight more evenly. While no mattress can guarantee pain relief, the combination of a plush top and a supportive spring unit is generally a sensible direction for pressure management, particularly if you’re a side sleeper or you simply prefer a softer surface that still has shape and lift underneath.
Support and spinal alignment
At the core, you’ve got 2000 Mirapocket® springs (based on a king size), individually wrapped so each spring can react independently. This matters because it’s one of the reasons a mattress can feel supportive without feeling hard: rather than the whole surface moving as one, the springs compress where you apply pressure, which can help keep your spine more evenly aligned. The zoned layout is designed to support key areas—typically meaning a little more structure through the midsection—so your hips don’t drop too far, which is often where poor alignment begins.
Overall, this is described as a medium feel, but it’s a “plush medium” in the way it’s finished, thanks to that pillow top. If you like a mattress you can genuinely sink into at the surface while still feeling held up underneath, this balance should make sense. If, however, you prefer a very flat, firm sleeping plane—especially if you’re a dedicated back sleeper who wants maximum resistance under the lower back—you may find a firmer model gives you that straighter, more on-top feel.
Motion isolation
Pocket springs are usually a strong choice for couples because the independent spring movement can limit how much motion travels across the bed. This mattress leans into that, and the addition of softer comfort layers on top can help absorb some of the smaller movements as well. That said, because this is not an all-foam mattress, you should still expect a touch of bounce compared with dense foam designs; it’s the trade-off you often make for easier movement, stronger edge feel and better airflow.
Edge support
Edge support isn’t called out as a headline feature here in the same way it is with some perimeter-reinforced hybrids, but a deep pocket spring unit generally provides a more stable edge than softer all-foam constructions, particularly when paired with a substantial overall build and a 33cm depth. If you like sitting on the side of the bed to put socks on, or you tend to sleep closer to the edge, you should get a reasonably secure feel—though the very plush pillow top may still compress more at the surface than a firmer, more minimal comfort layer.
Who it’s best for
Side sleepers who want a softer, “sink-in” surface
This is where the mattress makes its strongest case. The pillow top and responsive gel-infused comfort layer are geared toward easing pressure at the shoulder and hip, which are the two areas that typically complain first on a mattress that’s too firm. If you sleep on your side most of the night and you want a bed that feels immediately cosy without being flimsy underneath, this medium, plush-finished design should feel like a very natural fit.
Back sleepers who like medium comfort (but not ultra-firm support)
Back sleepers can absolutely suit a medium mattress, especially if they like a bit of cushioning and they’re not chasing a particularly firm “orthopaedic” sensation. The zoned Mirapocket® spring unit should help provide structure through the middle of the bed, which is useful for keeping your spine from bowing. However, if you’re someone who consistently feels best on the firmer end of the spectrum—where your hips are held very high and the surface feels flatter—you may prefer stepping up in firmness for a more locked-in alignment.
Hot sleepers who want cooling without giving up plush comfort
Plush mattresses can sometimes feel warmer simply because you sink in more, which reduces airflow around your body. What’s interesting here is that the mattress is clearly trying to counter that problem: a cool-to-touch cover for immediate freshness, a breathable open-cell foam structure, and a spring core that naturally encourages airflow. If you like a cushioned surface but you’re wary of waking up too warm, this is the sort of construction that’s at least pointing in the right direction.
Materials and construction
This is a hybrid-style build that blends a deep pocket spring system with substantial comfort layers and a pillow top finish, aiming for a more “hotel-bed” feel than a basic pocket sprung mattress. While Silentnight doesn’t list every single layer thickness in the description provided, the overall design is clear: cooling and breathable comfort on top, targeted support underneath, and a premium surface feel from the pillow top and cover.
Cool-to-touch cover: Designed to feel crisp and refreshing on contact, and OEKO-TEX® accredited to confirm the fabric is free from harmful substances.
UltraGel™ comfort layer: Gel-infused foam intended to feel responsive and buoyant while adapting to your shape for pressure relief.
Breathable foam structure: An open-cell design said to be five times more breathable than standard memory foam, helping to reduce that “stuffy” sensation some sleepers dislike.
2000 Mirapocket® springs (king size): Individually pocketed, zoned springs that react independently to weight and are designed to promote better spinal alignment while limiting motion transfer.
Plush pillow top: Adds an extra layer of softness and heightens the overall “sink-in” comfort, helping deliver the mattress’ medium, cosy feel.
Maintenance and day-to-day practicality
This is a single-sided mattress, which is genuinely convenient if you don’t want the hassle of flipping a heavy, deep bed. The sensible maintenance requirement here is rotation (tip to toe) rather than turning it over, and the inclusion of side handles makes that job far more manageable—particularly important with a 33cm depth, where manoeuvring can otherwise feel like a two-person project.
If you’re the sort of person who likes a “set it and forget it” mattress, single-sided builds can be a good match, as long as you’re happy to rotate it periodically to help promote even wear and keep the surface feeling consistent for longer.
Guarantee and brand reassurance
It comes with a 5 Year Guarantee, which provides a reassuring baseline of protection against manufacturing faults. Silentnight’s wider reputation in the UK market also matters here: it’s a long-established name, and the brand’s B-Corp certification signals a more transparent commitment to responsible practices than you typically see in this category. That won’t change how the mattress feels on night one, of course, but for many buyers it adds an extra layer of confidence that they’re purchasing from a manufacturer with track record and accountability.
Firmness and feel: what “medium” means here
“Medium” can be a slightly slippery term because one brand’s medium is another brand’s medium-firm, but in this case the pillow top finish strongly suggests that the initial feel is on the plusher side of medium. You’re likely to notice softness first, then support underneath as the springs engage. For average-weight sleepers, that tends to be a pleasing combination because it offers comfort without making you feel like you’re sinking endlessly into the mattress.
Based on how this mattress is built and finished, it’s best approached as a medium mattress with a plush top—ideal for those who want a softer bed feel—rather than a neutral, “flat medium” that feels the same from the first inch down.
Bottom line: is the Silentnight UltraGel Cool-to-Touch 2000 Mirapocket Pillow Top Mattress worth considering?
If you want a mattress that feels genuinely inviting the moment you lie down—plush, cushioned and noticeably fresher to the touch—while still relying on a proper pocket sprung core for support, this is a strong contender. The cooling cover and breathable UltraGel™ layer make it especially appealing for sleepers who love a softer surface but worry about heat build-up, and the zoned Mirapocket® springs should suit anyone who wants a more responsive, structured foundation than an all-foam mattress can offer.
It’s not the best match if you’re firmly in the “very firm, sleep-on-top” camp, or if you’re specifically chasing the deep, slow hug of traditional memory foam. But for side sleepers in particular—and for anyone who wants a medium feel with a plush, premium finish—it hits a sweet spot that’s easy to appreciate night after night.
