Silentnight UltraGel 3000 Mirapocket Box Top Softer Mattress
- In-stock
- Finance available
- Free delivery
- Returns
- Feature: Hypoallergenic
- Support: Pocket Spring
- Comfort: Gel Foam
- Brand: Silentnight
From £638.00
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BedBoy Score
A composite score drawn from aggregated customer sentiment across verified reviews, with construction-type benchmarks for categories where reviewer commentary is limited. See our scoring methodology.
across 8 measured categories
Per-category breakdown below. The composite is the unweighted mean of every scored category, rounded to one decimal place.
- Brand
- Silentnight
- Retailer
- Mattress Online
- Delivery time
- Good
- Customer sentiment
- Excellent
- Guarantee
- Excellent
About the Silentnight UltraGel 3000 Mirapocket Box Top Softer Mattress
Last checked
Plush pressure relief is the point here: a 35cm, single-sided box-top mattress using UltraGel foam, soft white fibres and mini pocket springs over Silentnight’s Mirapocket support unit. This is a comfort-led construction. The spring count is 3000 in kingsize, but the useful reading is 2000 full-height Mirapocket springs for the support core plus 1000 mini pockets in the comfort stack, rather than 3000 identical support springs doing the same job. That is a generous arrangement against many mid-range pillow-top hybrids, especially because the mini springs add responsiveness and airflow instead of relying only on foam, though the comfort finish is still synthetic gel foam and fibre rather than the wool, latex or cotton layers more often seen in the £700-plus pocket-sprung tier. The soft-to-medium feel and attached box top mean the first sensation is cushioning, not taut orthopaedic lift; the zoned Mirapocket unit underneath should spread load better than an open-coil mattress, but the deep comfort cap will let shoulders and hips sink before the spring unit takes over. Turning handles are useful because this is 35cm deep, yet single-sided means rotation rather than flipping, which is normal for a pillow-top build.
Side sleepers and back sleepers wanting a softer landing are the clearest match, and the happier accounts repeatedly link the plush top with full-body comfort, fewer morning aches and a supported rather than hammock-like feel. Several customers describe it as cooler than older memory-foam mattresses, which fits the spec: open-cell UltraGel and a mini-spring layer can move air more readily than a dense slab of standard memory foam. The comfort is not universal. Low-scoring feedback centres on the mattress looking substantial but failing to feel restful for some, including reports of waking with aches, so anyone who already knows they need a firmer, flatter surface for front sleeping or heavier builds may find the soft box top too yielding. Practical bulk also comes through: the 35cm depth can require deeper fitted sheets, and one poor account flags the weight as making sheet changes awkward, so the handles help with rotation but do not make it an easy mattress to manoeuvre. For couples, the individually pocketed Mirapocket base is the right construction for limiting partner disturbance compared with open-coil mattresses, while the mini springs stop the top feeling dead; edge firmness, however, is not a stated strength. If you're a side or back sleeper wanting cushioned pressure relief with some airflow, this works. If you're a front sleeper, heavier user or firmness-led buyer, a firmer pocket-sprung mattress or sturdier hybrid tier makes more sense.
Pros and Cons
Pros
- Buyers report exceptional support for back pain helping them sleep better.
- Recent owners find the mattress breathable and cooler than memory foam options.
- Owners describe the thickness as requiring specific bedding due to its depth.
- Users consistently mention comfort that caters to various sleeping positions.
Cons
- Several owners found the mattress too heavy for changing sheets easily.
- Some customers experienced discomfort leading to waking up with aches.
- Reviewers indicated the mattress did not meet their expectations for softness.
- A few users noted issues with overall durability and sagging after use.
Price Tracker
Written by
Giselle Green, Editor in Chief
Last checked by Giselle Green on . Scoring follows our scoring methodology.
Specifications
Manufacturer specifications without the jargon, easy to scan and compare.
Knitted cover
A knitted cover spells out a blend of cosiness with breathability, providing a comforting touch that many crave while ensuring your temperature remains well regulated throughout the night. This feature pairs comfort and functionality in a coveted balance, contributing to an intimate sleep environment that is warm, inviting, yet refreshingly aerated.
Medium
With a medium firmness level, this specification caters exquisitely to a substantial range of sleepers, being not too hard nor too soft. The presence of 1000 pocket springs, complemented by gel layers, intends to distribute weight evenly across the surface, aiding in maintaining correct spinal alignment and contributing to a restful night's sleep.
Fire Resistant
Ensuring safety during your peaceful slumber, fire resistance is a crucial feature that reduces the risk posed by potential accidents involving flammable materials. Furthermore, it demonstrates the manufacturer's commitment to adhere to strict safety standards, prioritizing your well-being over all else.
National Bed Federation Approved Brand
Receiving approval from the National Bed Federation indicates that the product meets specific industry standards and quality benchmarks. This approval serves as a reassurance of the product's reliability and durability, though discerning buyers may still want to consider personal comfort preferences.
Soft White Fibres
Incorporating soft white fibres into the design equates to enhanced breathability and temperature regulation within the sleep surface. This, in turn, contributes to a sleeping environment that stays fresh and cool, promoting a more restful and comfortable night's slumber.
Mini pocket springs
Harnessing the utility of mini pocket springs, you'll witness substantial improvement in tailored support and pressure relief. Furthermore, with the higher spring count, even distribution of weight becomes a guarantee, ensuring a restful and undisturbed night's sleep.
Soft to Medium
The softness level provides a balanced blend of comfort and support, catering well to side and back sleepers who need pressure relief yet desire mid-range firmness. Ideal for individuals who appreciate a gentle sink feel without sacrificing spinal alignment.
Tufted
Tufting is a great feature as it helps secure the fillings inside helping to promote even settlement while ensuring all fillings remain consistent. The result of tufting is a slightly firmer feel combined with great consistently across the entire mattress.
Approved by Allergy UK
Allergy UK approval indicates the mattress is less likely to trigger allergic reactions, hence providing more comfort for those with sensitivities. However, regular cleaning is necessary to effectively maintain its hypoallergenic properties.
35cm deep
Expect a tall mattress that can feel more supportive and cushioning, with less risk of feeling the bed base through it. Plan for added weight and bulk, which can make turning it, lifting it, and fitting standard fitted sheets more difficult.
UltraGel
UltraGel technology in the item provides a cooling sensation, making it ideal for those who often feel overheated during sleep. The inclusion of 3000 Mirapocket springs offers tailored support and pressure relief, enhancing overall comfort.
Includes turning handles
Turning handles aid in the regular rotation of the mattress, thereby significantly extending its lifespan. Easy maintenance is always appreciated, and these handles streamlining the process by making rotation hassle-free and manageable.
Vegan-friendly
Plant-based or synthetic fillings avoid wool, silk or other animal-derived fibres, leaving the surface suitable for shoppers avoiding animal materials. Check cover materials and fire barrier details where allergies are involved.
Geltex
With an innovative construction, this item offers a unique blend of breathability, pressure relief, and body support. The inclusion of a pillow top layer enhances comfort levels, elevating your sleep experience to new heights.
Approved by the National Bed Federation
Factory auditing checks that the mattress is made under UK rules for flammability, fillings and labelling, giving you a clearer paper trail for what arrives at home. It doesn't prove comfort, firmness or long-term durability.
Pillow top
A pillow-top layer gifts you with an additional layer of pure comfort and softness. It capitalises on reducing pressure points and enhancing back support which could contribute to a more restful and pain-free sleep.
5 year guarantee
Fault cover puts manufacturing problems in writing, making a loose strut, failed fixing or collapsed padding less of a gamble after delivery. Accidental damage, fabric marks and poor fitting usually sit outside it.
Hypoallergenic
Hypoallergenic mattresses are the perfect choice for those with allergies or sensitivities, as they protect against allergens and irritants. They're also a great choice for those with asthma or respiratory issues.
Mirapocket springs
Pocketed coils compress separately, giving your hips and shoulders more local give. Because each coil moves on its own, cheaper builds can lack edge firmness and may feel busy under very restless sleepers.
Pressure relief
Softer comfort layers let shoulders and hips sink slightly into the surface, spreading body weight before you feel sharper points building. Front sleepers may want firmer support to keep the hips level.
Made in the UK
This 100% UK made product is the perfect choice for a home with a sense of individuality. Sleep in comfort with the knowledge that you'll waking up refreshed and ready for another day.
Handcrafted in the UK
Factory workers assemble and finish the mattress by hand, leaving small variations in stitching or edge detail you may notice up close. It doesn't prove better support or longer life.
Single-sided
Bed-making is simpler because the comfort layers stay on the top face, leaving the underside to stabilise the mattress while you lie on the cushioned surface. Don't flip it over.
Frequently Asked Questions For The Silentnight UltraGel 3000 Mirapocket Box Top Softer Mattress
The questions below are the most common ones BedBoy readers ask when comparing products in this category. Contact the editorial team with a different question, quoting P1868 in the subject line.
Reader reviews of the Silentnight UltraGel 3000 Mirapocket Box Top Softer Mattress
BedBoy publishes reader-submitted reviews to broaden the sentiment sample. Reviewer purchase status is not independently verified at submission. For verified-purchase ratings, see the Trustpilot block below. Submit a review, quoting P1868 in the subject line.
Comfortable and supportive, this mattress truly caters to individual sleep requirements. It is noticeably breathable but the increased depth may require special beddings.
It very comfortable, sleep very well, no backache now, so comfortable i dont want to get out of bed.
Luxurious comfort, brilliant
Like sleeping on a cloud! Im not waking up feeling like 100 years old anymore
fantastic mattress
Everything- have tried Emma mattress and also Simba neither of which compare
A TO Z very good
This is the best matress we have owned. It offers perfect support and is really comfortable. I have never been a good sleeper and would wake up several times a night and would also get really hot, all that has gone and I am getting the best sleep I have ever had.
Super comfy and supportive, has all the right layers, never slept better, wouldn't go back to anything else!
Beautifully comfortable and luxurious makes bedtime something to look forward to.!!
good for my back
Took the old mattress away
Very comfy! Supports me still even though its a medium it is still quite firm.
It's thick mattress 15in well made good looking and very supportive I would recommend this to anyone who has back problems fantastic comfort and a good price
Supportive yet so comfy.
Lovely and comfortable (Medium Matress), not as firm as some have suggested, just swapped out a memory foam mattress and find this personally far better.
Beautiful mattress very comfortable.
Very comfortable,high quality for the good money
Fantastic nights sleep 10/10
Very comfortable and excellent back support!
Verified retailer reviews
Independent Trustpilot reviews of Mattress Online.
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