Silentnight 800 Mirapocket Mattress

Name: Silentnight 800 Mirapocket Mattress
Brand: Silentnight
SKU: P1864
Price: 233.00 GBP
Availability: InStock
Rating: 4.0 (8 reviews)

4.61 (101 reviews)

In-stock
Finance available
Free delivery
Returns

Feature: Hypoallergenic
Support: Pocket Spring
Brand: Silentnight

From £233.00 , last checked 24 May 2026

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Suitability

Temperature

Not too hot, nor too cold with this composition.

Suitability

Less Disturbance

Good for couples who toss & turn at night.

Suitability

Allergies

Composition of this mattress has features to help with allergies.

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.

4.0/5

BedBoy Score
across 8 measured categories

Per-category breakdown below. The composite is the unweighted mean of every scored category, rounded to one decimal place.

Strongest on off-gassing and setup and customer sentiment; weaker on retailer guarantee.

Off-gassing and setup 5.0/5 Show evidence for Off-gassing and setup

Off-gassing and setup scored 5.0/5 from non-compressed traditional construction. Reviewer commentary specific to off-gassing and setup was limited (0 relevant mentions across 42 reviews) so the score relies on construction type.
Customer sentiment 4.6/5 Show evidence for Customer sentiment

Customer sentiment scored 4.6/5 from an average star rating of 4.61 across 101 verified reviews.
Edge support 4.0/5 Show evidence for Edge support

Edge support scored 4.0/5 from pocket spring construction. Reviewer commentary specific to edge support was limited (0 relevant mentions across 42 reviews) so the score relies on construction type.
Motion isolation 4.0/5 Show evidence for Motion isolation

Motion isolation scored 4.0/5 from pocket spring construction. Reviewer commentary specific to motion isolation was limited (0 relevant mentions across 42 reviews) so the score relies on construction type.
Heat retention 4.0/5 Show evidence for Heat retention

Heat retention scored 4.0/5 from pocket spring construction. Reviewer commentary specific to heat retention was limited (0 relevant mentions across 42 reviews) so the score relies on construction type.
Durability 4.0/5 Show evidence for Durability

Durability scored 4.0/5 from pocket spring construction. Reviewer commentary specific to durability was limited (0 relevant mentions across 42 reviews) so the score relies on construction type.
Pressure relief 3.5/5 Show evidence for Pressure relief

Pressure relief scored 3.5/5 from pocket spring construction. Reviewer commentary specific to pressure relief was limited (0 relevant mentions across 42 reviews) so the score relies on construction type.
Retailer guarantee 2.7/5 Show evidence for Retailer guarantee

Retailer guarantee scored 2.7/5: 30-day money-back guarantee, 1-year manufacturer warranty (brand pass-through up to 10 years), and paid collection of large items. Sub-scores: trial 3.0/5, warranty 2.0/5, returns 3.0/5.
Comfort Rarely mentioned Comfort: Rarely mentioned. Not scored on this product.
Value Rarely mentioned Value: Rarely mentioned. Not scored on this product.

Brand: Silentnight
Retailer: Mattress Online
Delivery time: Good
Customer sentiment: Excellent
Guarantee: Excellent

About the Silentnight 800 Mirapocket Mattress

Last checked 24 May 2026

The useful tension here is between a simple pocket-sprung support unit and a fibre comfort pack rather than foam. The Silentnight 800 Mirapocket is a 26cm, single-sided mattress with zoned Mirapocket springs, Eco Comfort Fibre fillings, a knitted cover and a medium-to-firm feel; in practice, that points to a steadier, spring-led surface rather than the slow sink of a memory-foam hybrid. It is a practical, low-fuss specification. An 800-pocket unit is honest in the mainstream pocket-sprung class and a clear step up from basic open-coil mattresses, but it is still conservative beside the £700-plus pocket-sprung tier, where higher spring counts, mini-spring layers or deeper natural fillings tend to give more contour and liveliness. The zoning gives some shape awareness around heavier contact points, although the relatively modest spring count means the support should be read as broad and stable rather than highly profile-sensitive. Eco Comfort Fibre is the more distinctive part of the build: foam-free, vegan-friendly and made with repurposed plastic, it should feel lighter and more breathable than dense foam, but it will not provide the cushioned moulding that side sleepers often associate with pillowtops or memory foam. The 5-year guarantee, National Bed Federation approval and BS7177:2008 domestic fire compliance keep the spec credible rather than flashy, while the 31kg king-size weight is manageable for two adults during rotation, especially compared with heavier multi-layer hybrids.

The 800-spring support system suits people who want a firmer, cleaner-feeling mattress without the enveloping warmth of foam. The broad customer signal is favourable, at 4.6 from 752 reviews, and happier accounts repeatedly describe a comfortable, supportive surface, with couples particularly noticing less disturbance when one person turns over. That matches the pocket-spring construction: individual springs usually isolate movement better than open-coil units, even when the count is not especially high. The feel divides expectation more than quality. A recurring complaint in lower-scoring feedback is that the mattress does not land exactly where some expected on the firmness scale, with one sleeper finding it uncomfortable and another wanting it firmer, while a recent account found it firmer than anticipated; that contradiction suggests a true medium-to-firm feel rather than a hard orthopaedic one. The single-sided design also draws criticism because it can only be rotated, not flipped, so even wear depends on regular turning head-to-foot. Average-weight back sleepers and some front sleepers are the safest fit, because the spring unit and fibre pad give a flatter, more supportive plane; lighter side sleepers, or anyone wanting pressure relief at the shoulder, may find the comfort layer a little plain. A detailed heat-related account says it avoided becoming uncomfortably warm overnight, which lines up with the breathable fibre filling, though another describes the feel as slightly dead, a fair criticism of an 800-spring mattress without foam, latex or a second spring layer. The Silentnight 800 Mirapocket suits value-led couples and back sleepers wanting a breathable, foam-free pocket-sprung mattress; those prioritising plush pressure relief or a more responsive spring feel should look instead at the higher-count pocket-sprung or hybrid tier.

Pros and Cons

Pros

Owners report the mattress provides excellent body support with its individual Mirapocket springs.
Many buyers appreciate the balance between firmness and comfort for restful sleep.
Recent purchasers find the eco-friendly features contribute positively to overall quality.
Couples mention minimal disturbance from their partner's movement during the night.

Cons

Some users find the mattress less firm than expected, affecting their support preferences.
Several purchasers noted discomfort over time, indicating a lack of long-term support.
A few buyers experienced issues with spots on their skin after initial use.
The single-sided design limits rotation options, which some users find inconvenient.

Price Tracker

Price history requires JavaScript. Current price: £233.00, last checked 24 May 2026.

Written by Giselle Green, Editor in Chief

Last checked by Giselle Green on 24 May 2026. Scoring follows our scoring methodology.

Specifications

Manufacturer specifications without the jargon, easy to scan and compare.

5 year guarantee

A 5 year guarantee is longer than the industry standard and gives confidence that both the supplier and retailer have confidence in the product they sell. After all, if it goes wrong through a manufacturing defect in this time, they will be the ones on the hook! Sleep soundly with the confidence that you will not be left out of pocket through this period. A win for the consumer.

Vegan-friendly

Heralding a compassionate step towards lifestyle compatibility, a vegan-friendly attribute implies the absence of animal-derived elements, a prominent feature savored by the environmentally-conscious folks. With a likely negative for allergy sufferers due to the potential inclusion of synthetic materials, it's debatable whether this facet should be an ultimate decisive factor.

Depth: 26cm

Impressively deep at 26cm, this specification is suggestive of a more luxurious sleep surface, potentially providing greater comfort and support due to the possible inclusion of additional layers. However, it may require deeper fitted sheets, which could be an additional consideration for potential buyers when thinking about overall ease of use and maintenance.

Medium to Firm

Brandishing a "medium to firm" categorisation, this refers to the desired balance between support and comfort. Typically, such a rating means you'll experience an optimal distribution of your body weight while ensuring pressure points like hips and shoulders won't sink too deeply, thereby resisting counterproductive sagging and promoting aligned posture.

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.

Approved by the National Bed Federation

The independent seal of approval from the National Bed Federation assures meticulous standards of manufacturing. With a rigorous assessment of quality, durability and safety, such an endorsement means you're getting a product that meets top-class industry standards, contributing to more sound and relaxed slumbers.

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.

Mirapocket springs

Mirapocket springs deliver an edge-to-edge support by allocating weight individually, hence, ensuring exceptional personalised comfort and less partner disturbance during sleep. However, potential over-firmness in smaller size mattresses might not be ideal for those who prefer a softer sleeping surface.

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.

Eco Comfort Fibre

Encompassing sustainable and recyclable materials, Eco Comfort Fibre contributes to a greener environment while offering substantial comfort. This technology, simultaneously breathable and resilient, aids in maintaining an ideal sleep temperature and delivers an uninterrupted, restful night.

Chemical treatment-free

Opting for a mattress unmarred by chemical treatments essentially heightens your exposure to a more organic, safer sleeping environment. This invariably furthers your health prospects by diminishing potential toxic threats, directly contributing to a wholesome, restorative slumber.

26cm deep

A mattress with a depth of 26cm assures a medium-thick construction, offering a harmonious blend of support and comfort. Consequently, sleepers can anticipate a balance between plush comfort layers and robust supporting springs or cores, without any compromise on overall longevity.

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.

Handmade in the UK

Wow! If you're looking for a high-quality mattress that is handmade in the UK, then this is one to watch. This mattress is made with high-quality materials and tested to ensure quality.

Handcrafted in the UK

Wow! If you're looking for a high-quality mattress that is handmade in the UK, then this is one to watch. This mattress is made with high-quality materials and tested to ensure quality.

Single-sided

Unlike double-sided mattresses that require flipping, a single-sided mattress only needs to be rotated periodically, making maintenance easier.

Frequently Asked Questions For The Silentnight 800 Mirapocket 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 P1864 in the subject line.

This mattress can suit a variety of sleepers very well. Its medium to firm tension is particularly comfortable for those who prefer sleeping on their side or back. The mattress offers good support for individuals of average weight, and it also responds to one's unique body shape thanks to its innovatively designed Mirapocket springs. For side sleepers with an hourglass figure, it might be a good idea to consider a slightly softer tension for a better sinkage. Back sleepers should find the level of support more than adequate. Gary, thanks.

Based on customer reviews, the Silentnight 800 Mirapocket Mattress appears to be an excellent choice for those seeking value for money. Reviews praise its comfort, quality, and support. Some customers have described it as being extremely comfortable and the 'most comfortable' they've ever had, with the right balance of firmness and give. However, it's important to note that comfort is subjective, and what works for one person may not work for another. Therefore, it's always advisable to consider your own personal comfort preferences when choosing a mattress. There was an isolated incident where a customer believed bed bugs could have been a problem, but this does not seem like a common or consistent issue with this mattress.

The Silentnight 800 Mirapocket Mattress features Silentnight's innovative Eco Comfort Fibres, which offer an environmentally friendly approach to sleep comfort. These fibres are manufactured from recycled materials and are conscious of reducing environmental waste. Furthermore, they offer excellent breathability and freshness for a comfortable night's sleep.

Maintenance for Silentnight 800 Mirapocket Mattress is simple and fuss-free as it is a single-sided mattress. It doesn't need flipping, but for equal wear, it is advisable to rotate it every few months.

The Silentnight 800 Mirapocket Mattress is hypoallergenic, meaning it's free from allergenic materials. This can significantly benefit individuals prone to allergic reactions or respiratory problems, as it minimises the potential for triggering such conditions. It also does not contain any foam or have any chemical treatments, which further contributes to a healthier, cleaner, and more comfortable sleep environment.

Heavier sleepers may like the initial firmness, but the review treats the 800 spring count as mainstream rather than heavy-duty. Long-term support will depend on how evenly those springs carry your weight.

Best suited to average-weight side sleepers with straighter builds, as the springs give some shoulder and hip movement. Lighter side sleepers may find it firmer than expected, and curvier shapes may want more sink around the shoulder and waist.

Back sleepers are the clearest match. The zoned Mirapocket unit is designed to resist the pelvis dropping too far, giving a steadier feel for the lower back than a basic open-coil mattress.

It is single-sided, so you rotate it rather than flip it. That makes care simpler, but regular rotation still matters to help the sleep surface wear evenly.

It is on the firmer side of medium-firm, rated 4 out of 5. The feel comes from zoned pocket springs and fibre cushioning, so expect supportive resistance rather than deep, slow sink.

It should be fairly breathable for this type of mattress. Eco Comfort Fibre is foam-free and less enveloping than dense memory foam, so it is aimed at airflow-friendly cushioning rather than heat-hugging softness.

Reader reviews of the Silentnight 800 Mirapocket 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 P1864 in the subject line.

Steffy via bedboy

Although the mattress felt somewhat firmer than expected, its comfort level is balanced out by the added eco-friendly features. Overall, pleased with the quality.