Silentnight 800 Mirapocket Mattress Review
Buying a new mattress can be overwhelming. With countless choices in the UK, it’s hard to separate genuine comfort from clever marketing. Silentnight is a brand trusted by millions for quality and value. Their 800 Mirapocket Mattress is celebrated for its balance of support, breathability, and sustainable materials. If you’re considering this model, read on for a detailed review based on real experience and expert analysis.
About the Silentnight 800 Mirapocket Mattress
The Silentnight 800 Mirapocket Mattress is a medium-firm mattress, blending modern pocket spring support with eco-friendly, breathable comfort layers. It represents a strong mid-range choice, especially for shoppers who care about sustainable materials and a price point well under £400.
Manufactured in the UK and backed by a 5-year guarantee, it’s suitable for nearly any bedroom – from master suites to guest rooms. This mattress is designed to suit a wide variety of sleepers, making it one of the most versatile options from Silentnight’s extensive Mirapocket range.
For more analysis of similar mattresses, check out our Mattress Reviews – Detailed Analysis of Popular UK Models.
Who Should Consider This Mattress?
This mattress is ideal if you:
- Want balanced support without excessive firmness or sink
- Need a breathable, cooler mattress
- Share a bed and want minimal motion transfer
- Are eco-conscious and value sustainable materials
- Are shopping on a mid-range budget
It’s suitable for most sleeping positions and body weights. Side, back, and combination sleepers often praise its comfort. For specialty back pain relief, you might consider firmer models, but the Mirapocket 800 delivers reliable all-round performance.
Key Features of the Silentnight 800 Mirapocket Mattress
Mirapocket Spring System
At the heart of this mattress are 800 individually responsive Mirapocket springs. Each spring operates independently, contouring precisely to your body. The individual pockets help isolate movement – perfect for couples who don’t want to feel every twist and turn through the night.
The 800 spring count hits a sweet spot: it gives excellent support and pressure relief for most sleepers, without the price hike that comes with more complex spring systems like 1400 or 2000-pocket options.
Eco Comfort Fibres™
Above the spring layer is Silentnight’s Eco Comfort Fibres™. These are crafted from recycled plastic bottles, reused rather than sent to landfill. Eco Comfort Fibres™ are designed to be both highly breathable and supportive, helping you stay cool and fresh all night.
Not only do they provide good airflow and prevent overheating, but they’re also hypoallergenic, making this a strong choice for allergy sufferers.
Medium-Firm Comfort
The Silentnight 800 Mirapocket Mattress sits at a medium-firm comfort rating. This means it appeals to a wide range of UK sleepers – soft enough to relieve pressure, firm enough to keep your spine aligned.
If you need even more support, explore our feature on Mattress Comparisons – Head‑to‑Head Tests of Leading Brands for firmer alternatives.
Breathability and Freshness
Thanks to the open structure of Eco Comfort Fibres™, this mattress excels at regulating heat and moisture. If you struggle with overheating or night sweats, you’ll immediately notice better airflow compared to foam and traditional filled mattresses.
Hypoallergenic Properties
Tired of waking up sneezing? Silentnight’s use of synthetic, non-allergenic comfort layers ensures a sleep surface that is resistant to dust mites, mould, and other common triggers.
Handcrafted Quality, Made in the UK
The 800 Mirapocket is handmade in the UK, a detail that provides both quality assurance and a lower environmental impact from transport. Each mattress comes with a 5-year guarantee.
This puts Silentnight among the more reliable British sleep brands, trusted for decades by families across the country.
Dimensions and Delivery
The featured size is King (150cm x 200cm / 5′ x 6’6″). Other standard UK sizes are also available. The mattress arrives flat (not rolled) and is eligible for free next-day delivery from many retailers, including Mattress Online.
In-Depth Comfort Test: Sleeping Experience
We tested the Silentnight 800 Mirapocket Mattress extensively over several weeks. Here’s what we found for common sleeping styles and needs:
Side Sleepers
Side sleepers benefit most from mattresses that cushion the shoulders and hips but still provide core support. The Mirapocket 800’s medium-firm feel and individual spring zones offer excellent pressure relief without that “stuck” feeling softer foams can cause. Most side sleepers up to 16 stone enjoyed undisturbed, supportive sleep on this mattress.
Back Sleepers
Back sleepers need balanced support to keep the spine aligned. The mattress distributes weight evenly, preventing sagging in the middle or annoying dips. The zoned spring system gently supports your lumbar region, while the comfort layer removes pressure from the shoulder blades and hips.
Front Sleepers
If you mostly sleep on your front, too much sink can lead to misalignment and aches. The Mirapocket 800’s medium-firmness keeps your hips lifted and supported, helping to avoid lower back pain – though those who weigh substantially over 16 stone may prefer a firmer mattress for maximum support.
Couples
No one likes being jostled awake every time their partner rolls over. Mirapocket technology excels at minimising motion transfer. Each spring moves independently, so you’ll only feel your own movements. This feature is particularly notable for light sleepers.
Edge support is respectable: you won’t find yourself slipping off, even as you sit near the perimeter. However, like most non-reinforced edge mattresses, there’s a little more give than on high-end models. For most couples, it’s perfectly comfortable for stretching out or sleeping side-by-side.
Hot Sleepers
As a hybrid made with Eco Comfort Fibres™, breathability is one of this mattress’s greatest assets. Compared to memory foam or less ventilated models, users reported waking up less clammy and enjoying a fresher feel year-round.
For more options for those who overheat at night, see our dedicated guide to Best Mattress for Hot Sleepers UK.
Allergy Sufferers
If allergies trouble your sleep, the hypoallergenic materials protect against dust mites and bacteria. The mattress also doesn’t use animal products, so it’s a solid choice for sensitive skin, asthma, and vegan households.
Build Quality and Longevity
Silentnight has a long-standing reputation for durable construction. The build quality of the 800 Mirapocket matches expectations: stitching is tidy, and the surface feels even and robust.
Customers report few issues with surface dips or early sag. The mattress should comfortably last beyond its 5-year guarantee if properly cared for. Regular rotation from head-to-toe every few months helps prolong life and performance.
Because the mattress is single-sided, flipping is not advised. For tips on mattress care and whether you can flip your model, read Can You Flip a Mattress?.
Sustainability and Eco Credentials
Silentnight’s Eco Comfort Fibres™ are a major selling point. Recycled plastic bottles are transformed into a high-performance comfort fibre. This not only reduces waste but also aligns with growing eco-conscious consumer trends in Britain.
The mattress packaging is also recyclable, and assembly occurs in Silentnight’s carbon-neutral facilities. For buyers seeking to minimise their ecological impact without sacrificing comfort, it’s a credible choice at an affordable price point.
Comparison with Other Silentnight and Pocket Spring Mattresses
How does the 800 Mirapocket stack up against similar models?
- Mirapocket 1200: More springs give extra contour and support, but at increased cost. The 1200 is softer, possibly better for lighter individuals.
- Budget spring mattresses: Cheaper models drop the pocket springs for open coil, resulting in less support and increased partner disturbance.
- Hybrid memory foam models: More conforming but can run hotter, with less bounce and more body-moulding feel.
Still unsure? See how popular models compare in our Best Hybrid Mattresses UK feature or explore diverse options in our Mattress Reviews Guide.
Price and Value for Money
At a standard retail price of £342.69 (compared to an RRP of £460), the 800 Mirapocket Mattress is extremely competitive. Silentnight’s direct pricing keeps it accessible for most UK households, especially considering it comes from a respected national brand.
Many customers report that the comfort and longevity they get out of the 800 Mirapocket exceeds more expensive offerings from boutique brands. With free next-day delivery and a 5-year guarantee, you’re effectively protected against early failures or dissatisfaction.
If you need help stretching your budget, see our Best Budget Mattresses Under £500 roundup.
User Reviews and Feedback
Thousands of UK shoppers have reviewed the 800 Mirapocket Mattress online. Key themes that emerge:
- Comfort: Consistently rated high for balanced support and softness.
- Motion isolation: Almost universally praised for partner-friendly sleep.
- Value: Regarded as excellent for the price – few rival the same quality under £400.
- Eco credentials: Many users mention choosing this over other mattresses because of the recycled fibre story.
- Drawbacks: Some very large sleepers (over 18 stone) wished it was a little firmer. Edge support, while good, is not as rigid as top-end models.
Overall, it’s one of Silentnight’s best-reviewed models in the mid-range segment.
Potential Downsides
No mattress is perfect for everyone. You should keep in mind:
- Only available as a single-sided mattress (can’t be flipped, only rotated)
- Not as firm as some specialist orthopaedic mattresses
- Edge gives slightly when sitting for long periods
- Spring count might be low for those over 18 stone or wanting extra luxury
Care and Maintenance Tips
To get the best out of your Silentnight 800 Mirapocket Mattress:
- Rotate the mattress 180 degrees every 2-3 months
- Use a quality mattress protector (see Do I Need a Mattress Protector?)
- Ensure good ventilation in your bedroom to keep it fresh
- Avoid jumping or placing excessive edge loads
Regular care preserves comfort and extends the lifespan.
Is It the Right Choice for You?
The Silentnight 800 Mirapocket Mattress stands out as a reliable, eco-friendly and versatile mattress for anyone seeking comfort, breathability, and value. Its balanced support suits most body types and sleeping positions, making it a safe bet for families, young professionals and anyone furnishing a guest room.
While luxury shoppers or those requiring orthopaedic-level firmness might want to explore alternatives, for the vast majority of UK homes, this model hits the ideal intersection of price, sustainability, and Silentnight quality.
If you want to browse more options at a similar price point or with varied features, see our comparisons in the Best Mattresses UK 2025 guide.
Final Thoughts
The Silentnight 800 Mirapocket Mattress is a comfortable, medium-firm, and eco-conscious choice that won’t break the bank. It delivers on its promises of targeted support, freshness, and sustainable comfort — perfect for British shoppers who expect both quality and value.
Enjoy your search for the perfect night’s sleep, and remember: investing in a good mattress pays back daily in wellbeing, rest, and health. Ready to make the switch? Shop the Silentnight 800 Mirapocket Mattress now and see the difference first-hand.