Available 
Silentnight Air Plus 1400 Mirapocket Ortho Mattress
from £388-£728.
£388-£728
Sizes tracked: Single, Small Double, Double, King Size, Super King
Silentnight Pocket Sprung
Silentnight Air Plus 1200 Mirapocket Mattress review
Silentnight Air Plus 1200 Mirapocket Mattress is a medium-feel pocket sprung option with five size choices, a 5-year guarantee and a 100-night comfort trial. It looks like a practical shortlist if you want everyday support, but check the exact size price, delivery terms and trial conditions before buying.
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Last verified: 2026-11-08
Quick verdict
Silentnight Air Plus 1200 Mirapocket Mattress looks like an everyday pocket sprung shortlist rather than a specialist buy. The retailer lists a medium firmness feel, Mirapocket springs and five size options, with tracked prices from £389 to £735. That combination makes it worth comparing if you want a balanced feel and enough size choice to match your bed, but you should still check the exact size price, delivery extras and comfort-trial conditions before you order.
Available sizes and prices
Silentnight Air Plus 1200 Mirapocket Mattress is listed with 5 size options from £364-£688. The visible sizes include Single, Small Double, Double, King Size, so use the table to compare the option that matches the exact size, colour, format or specification you want. Always confirm the final checkout price, delivery charge and stock status on the retailer page.
| Size | Firmness | Price | Stock | Last checked | Link |
|---|---|---|---|---|---|
| Single | Check retailer | £364 | In stock | 2026-11-08 | View |
| Small Double | Check retailer | £458 | In stock | 2026-11-08 | View |
| Double | Check retailer | £488 | In stock | 2026-11-08 | View |
| King Size | Check retailer | £574 | In stock | 2026-11-08 | View |
| Super King | Check retailer | £688 | In stock | 2026-11-08 | View |
Key product details
These are the retailer details worth checking first for Silentnight Air Plus 1200 Mirapocket Mattress: Brand: Silentnight; Type: Pocket Sprung; Sizes tracked: Single, Small Double, Double, King Size, Super King; Price range: £364-£688. Treat them as a quick fact sheet, then use the retailer page to verify any installation, warranty, delivery or model-number details before buying.
| Brand | Silentnight |
|---|---|
| Type | Pocket Sprung |
| Sizes tracked | Single, Small Double, Double, King Size, Super King |
| Price range | £364-£688 |
| Owner rating signal | 4.9 out of 5 shown; review volume needs checking with the retailer |
| Last checked | 2026-11-08 |
What the retailer page says
Mattress Online lists Mirapocket springs, soft white fibres and zoned support for the Silentnight Air Plus 1200 Mirapocket Mattress. The page also describes it as single-sided, so it should be rotated as part of routine care. The retailer shows a medium firmness rating, a 100-night comfort trial with conditions and a 5-year guarantee, which are the main product-page details to verify before you commit.
Key takeaways from the available evidence
The clearest positives are the medium-feel pocket sprung build, the five tracked sizes and the starting price of £389, which sits below the comparable-product median of £605. The size range is broader than the typical peer in the current set, so this model gives shoppers more choice than many rivals. The visible 4.9 out of 5 owner rating is encouraging, but it comes from just 8 reviews, so it should be treated as supporting context rather than strong proof on its own. Because the evidence is listing-based, comfort and support should be read as retailer claims rather than active testing results.
Buyer trade-offs to weigh up
Start with firmness first: if you want a medium-feel pocket sprung mattress, the Silentnight Air Plus 1200 Mirapocket Mattress is easy to shortlist, but it is less suitable if you want a clearly softer or firmer feel. Then compare the size and price spread, because the range runs from £389 for a Single to £735 for a Super King. Also check the delivery and setup options on Mattress Online, including free delivery to most locations, room-of-choice delivery and recycling charges. Finally, read the comfort-trial conditions carefully, since the 100-night offer is conditional and the mattress should be matched to your base or slats before you rely on the headline terms.
Price and value benchmark
The tracked price range for Silentnight Air Plus 1200 Mirapocket Mattress runs from £389 to £735 depending on size, with Single at £389, Small Double at £489, Double at £525, King Size at £615 and Super King at £735. That puts it below the comparable-product median starting price of £605, so it is a competitive listing in context rather than an expensive one. Compare by size rather than the headline starting point, because stock, checkout price and delivery costs can vary by variant and snapshot.
How it compares with nearby alternatives
This model is a medium-feel pocket sprung mattress with Mirapocket springs, so the main comparison point is whether you want that balanced feel or something firmer. Silentnight Air Plus 1400 Mirapocket Ortho Mattress is a useful nearby comparison if you want a firmer Silentnight option, while Horizon Juno 5000 Pocket Memory Mattress is worth checking if you want to compare a similar price band against a different pocket sprung specification. The Air Plus 1200 stands out for its five size choices and medium feel, so it is best compared against models where firmness and price move in a different direction, not just against mattresses with similar names.
review details and caveat
The retailer shows a 4.9 out of 5 rating from 8 visible reviews, which is a positive signal but still a small sample. That means the score is best treated as supporting context rather than decisive proof, especially because comfort is subjective and review volume is limited. It is useful reassurance, but it should sit behind the mattress’s firmness, size fit, delivery terms and trial conditions when you decide whether to shortlist it.
Who it suits
This mattress should suit shoppers who want everyday comfort, a medium-feel preference and a pocket sprung support setup from Silentnight. It is also a good fit if you want more size choice than many comparable models, because the tracked options run through Single, Small Double, Double, King Size and Super King. For a main bedroom, guest room or a straightforward replacement purchase, the combination of Mirapocket springs, soft white fibres and a 5-year guarantee makes it easy to shortlist if medium firmness is what you had in mind.
Who should avoid it
Look elsewhere if you know you want a very soft or very firm mattress, because this model is listed as medium rather than either extreme. It is also not the best match if you are expecting specialist orthopaedic positioning, since the retailer description does not support that kind of outcome. Before buying, check base and slat compatibility, plus the 100-night trial and guarantee conditions, so you are not relying on headline terms that may not match your frame or your expectations.
Comfort and support
On paper, the Silentnight Air Plus 1200 Mirapocket Mattress combines Mirapocket springs, soft white fibres and zoned support with a medium firmness rating. That points to a balanced pocket sprung feel rather than an overly plush or heavily firm design, which is why it may suit shoppers looking for straightforward everyday support. There is no active testing in the available evidence, so this should not be read as proof of pain relief or any medical outcome. The practical checks are simple: make sure the mattress depth works with your bed frame, and confirm that your slats or base meet the retailer and manufacturer compatibility notes before ordering.
Value check
Value here depends on fit as much as price. At £389 to £735 across the tracked sizes, the Silentnight Air Plus 1200 Mirapocket Mattress looks fairly positioned against similar pocket sprung models, especially if you want a medium feel and five size options. The 5-year guarantee and 100-night comfort trial add reassurance, but those benefits only matter if you are happy with the trial conditions, the protector requirement and any exchange fee. If you need a different firmness feel or want to compare a firmer Silentnight alternative, check nearby models first so you can judge whether the added convenience is worth the price in your chosen size.
Good alternatives to compare
The closest alternatives to compare with Silentnight Air Plus 1200 Mirapocket Mattress include Silentnight Air Plus 1400 Mirapocket Ortho Mattress, Silentnight Memory 800 Mirapocket Mattress, Silentnight Air Plus 1000 Mirapocket Mattress. Use these cards to check whether a nearby model gives you a better price, a more suitable specification or a clearer match for your space and budget.
Available 
Silentnight Memory 800 Mirapocket Mattress
from £335-£645.
£335-£645
Sizes tracked: Single, Small Double, Double, King Size, Super King
Available 
Silentnight Air Plus 1000 Mirapocket Mattress
from £308-£615.
£308-£615
Sizes tracked: Single, Small Double, Double, King Size, Super King
Retailer details used
Last checked 2026-11-08. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
More mattresses to compare
These related guides and reviews can help you compare nearby options before buying.
Questions about this mattress
Is Silentnight Air Plus 1200 Mirapocket Mattress worth shortlisting for everyday comfort?
It looks like a sensible everyday shortlist if you want a medium-feel pocket sprung mattress from Silentnight. The combination of Mirapocket springs, soft white fibres, five sizes and a current price range of £389 to £735 makes it practical rather than specialist. As always, check the exact size and trial terms before you buy.
Does the price change by size and what should I compare before checkout?
Yes. The tracked prices run from £389 for a Single to £735 for a Super King, with Small Double at £489, Double at £525 and King Size at £615. Compare the exact size you need, then check stock, delivery options and the final checkout price rather than relying only on the starting figure.
What does the medium firmness mean for sleep position fit?
Medium firmness usually points to an all-round feel rather than an extreme soft or firm design, so it can suit a broad range of preferences better than specialist models. The best check is still your own comfort preference, because the page evidence is product-listing information rather than an in-person test.
Is the 4.9/5 rating strong proof if only 8 reviews are visible?
It is a positive sign, but not strong proof on its own. The 4.9 out of 5 score comes from 8 visible reviews, which is a small sample, so it should be treated as supporting context alongside the medium feel, size choice and trial conditions.
What are the key delivery, trial and guarantee conditions to check before buying?
The retailer shows free delivery to most locations, with room-of-choice delivery and recycling available for extra cost. The 100-night comfort trial is conditional rather than a money-back offer, and the page lists a 5-year guarantee. Check the protector requirement, exchange fee and postcode-dependent delivery details before ordering.