Available 
Hypnos Cawthorne Support Mattress
from £504-£818.
£504-£818
Sizes tracked: Single, Small Double, Double, King Size, Super King
Hypnos Mattress
Hypnos Cawthorne Deluxe Mattress review
Hypnos Cawthorne Deluxe Mattress is a medium-feel Hypnos mattress with 1000 ReActive springs, five size options and a 100-night comfort trial to compare.
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Last verified: 2026-08-03
Quick verdict
Hypnos Cawthorne Deluxe Mattress looks like a sensible mid-range pick for shoppers who want a medium feel, pocket-sprung support and a clear retailer safety net. On Mattress Online it runs from £404 to £708 depending on size, with a 100-night comfort trial and a 5-year guarantee stated on the product page. That makes it worth shortlisting if you want everyday comfort without moving into the pricier Hypnos alternatives straight away.
Available sizes and prices
Hypnos Cawthorne Deluxe Mattress is listed with 5 size options from £489-£819. 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 | £489 | In stock | 2026-08-03 | View |
| Small Double | Check retailer | £589 | In stock | 2026-08-03 | View |
| Double | Check retailer | £615 | Check retailer | 2026-08-03 | View |
| King Size | Check retailer | £699 | Check retailer | 2026-08-03 | View |
| Super King | Check retailer | £819 | Check retailer | 2026-08-03 | View |
Key product details
These are the retailer details worth checking first for Hypnos Cawthorne Deluxe Mattress: Brand: Hypnos; Type: Mattress; Sizes tracked: Single, Small Double, Double, King Size, Super King; Price range: £489-£819. 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 | Hypnos |
|---|---|
| Type | Mattress |
| Sizes tracked | Single, Small Double, Double, King Size, Super King |
| Price range | £489-£819 |
| Owner rating signal | 4.7 out of 5 shown; review volume needs checking with the retailer |
| Last checked | 2026-08-03 |
What the product page tells us
The retailer page gives a useful, shopper-facing snapshot: 1000 ReActive springs, Solotex and eOlus fibre comfort layers, 25 cm depth and a single-sided design with seasonal top-to-toe rotation. It is described as handcrafted in the UK, and the listed sizes tracked here are Single, Small Double, Double, King Size and Super King. Those details matter because depth can affect bed-frame fit, bedding choice and topper compatibility, so it is worth checking the live page if you need a precise match.
What stands out beyond the listing
The broader comparison picture makes this more interesting than a plain product summary. At £404, the starting price sits below the comparable-product median of £503.50, and the mattress has 5 tracked sizes versus a peer median of 4, which suggests better choice than many similar listings. The owner rating is 4.7/5, but the visible review volume is modest, so the rating is best treated as a helpful support point rather than a final verdict. Nearby Hypnos Cawthorne Luxury and Hypnos Cawthorne Support models give a useful reality check on whether a small price rise changes the specification enough to matter.
Buyer trade-offs to weigh up
The main question is whether the Cawthorne Deluxe’s medium feel and £404-£708 spread fit your budget and comfort preference better than nearby alternatives. One important caveat is the guarantee wording: the retailer page states 5 years, while Hypnos’s general guarantee guidance can differ, so verify the live terms before checkout. Also check live stock, because the tracked sizes are not all available at once, and compare the Deluxe directly with Hypnos Cawthorne Luxury Mattress and Hypnos Cawthorne Support Mattress if you want a firmer, softer or more feature-rich option.
Price and value benchmark
This mattress sits in the mid-range rather than the cheapest tier, with tracked prices from £404 for Single up to £708 for Super King. Against the peer median of £503.50, that starting point is competitive, especially if you are comparing like-for-like medium pocket-sprung options from a known brand. Value will depend on size, stock and whether the 25 cm profile plus 100-night comfort trial feels worth the current checkout price on Mattress Online.
How it compares with nearby alternatives
If you are comparing construction and price rather than just brand name, the nearest options are useful. Hypnos Cawthorne Luxury Mattress starts a little higher at £458 and can run to £798, while Hypnos Cawthorne Support Mattress starts at £549 and reaches £909, so the Deluxe is the more accessible entry point in this family. Sleepeezee Fusion Pro Mattress is another comparison point if you want to see whether a different brand offers a different comfort spec at a similar or higher price level.
How to read the review evidence
The review details are positive but not especially deep. Mattress Online shows a 4.7/5 owner rating, and the visible count appears slightly different in retailer-facing views, so the exact live figure should be checked before buying. That is enough to support interest, but not enough to prove broad consensus, so it should sit alongside the mattress’s specs, size choice and current price rather than outweigh them.
Who it suits
This looks best suited to shoppers who want everyday comfort from a medium-feel mattress rather than an especially firm or very soft surface. The 1000 ReActive spring system should appeal if you prefer pocket-sprung support with a more responsive feel, and the five-size spread gives flexibility for singles, guest rooms and main bedrooms. It is also a practical shortlist if you want the reassurance of a 100-night comfort trial and a familiar UK-made Hypnos option.
Who should keep looking
If you know you want a very firm mattress or a noticeably soft one, this medium Hypnos Cawthorne Deluxe may not be the cleanest match. Shoppers who want a different construction altogether, such as foam-led comfort or a more distinctive hybrid feel, should compare other designs rather than forcing a compromise. If budget is the main concern, keep an eye on the £404 Single entry point and compare against cheaper alternatives too, because the Cawthorne Deluxe is not positioned as the lowest-cost choice.
Comfort and support
The comfort story here is straightforward: a medium firmness rating, 1000 ReActive springs and layered fibre comfort materials are aimed at balanced, everyday use. That combination suggests a mattress designed to blend support with cushioning rather than to push hard in one direction. It is worth keeping the language practical here: these are product details that help comparison shopping, not claims about pain relief or medical outcomes.
Value check
On value, the Cawthorne Deluxe makes most sense if you want Hypnos build quality, a medium feel and a five-size range without climbing to the higher starting prices of nearby alternatives. The free delivery to most locations and the advertised 100-night comfort trial add reassurance, though the exact terms should still be checked on the live retailer page before checkout. Because price varies by size and some sizes may be out of stock, the final value judgement depends on which version you need and what the checkout page shows today.
Good alternatives to compare
The closest alternatives to compare with Hypnos Cawthorne Deluxe Mattress include Hypnos Cawthorne Support Mattress, Hypnos Cawthorne Luxury Mattress, Sleepeezee Fusion Pro 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 
Hypnos Cawthorne Luxury Mattress
from £565-£915.
£565-£915
Sizes tracked: Single, Small Double, Double, King Size, Super King
Available 
Sleepeezee Fusion Pro Mattress
from £599-£1,049.
£599-£1,049
Sizes tracked: Single, Double, King Size, Super King
Retailer details used
Last checked 2026-08-03. 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 Hypnos Cawthorne Deluxe Mattress worth shortlisting for everyday comfort?
Yes, it looks worth shortlisting if you want a medium-feel Hypnos mattress with pocket-sprung support and a practical size spread from Single to Super King. The 100-night comfort trial and retailer guarantee wording add reassurance, but always check the live price and stock first.
How firm does Hypnos Cawthorne Deluxe Mattress feel in practice?
The retailer rates it as medium firmness, so it should sit in the balanced middle ground rather than feeling very firm or very soft. That makes it a sensible compare-against option if you want everyday comfort with 1000 ReActive springs and fibre comfort layers.
Does the price change much by size on Mattress Online?
Yes. The tracked price range runs from £404 for Single to £708 for Super King, so size has a clear effect on cost. If you are comparing value, check the exact live size you need rather than judging the mattress from the entry price alone.
Is the 4.7/5 rating enough to trust the product?
It is a positive sign, but the visible review volume is modest and the exact count should be checked live because the retailer-facing figures do not fully match. Treat it as supporting context, then weigh it against the medium firmness, construction, price and warranty wording.
What should I compare against if I want a firmer or softer alternative?
Look at Hypnos Cawthorne Support Mattress if you want to compare a different support feel, and Hypnos Cawthorne Luxury Mattress if you want to see whether a higher-priced Hypnos option changes the spec enough to justify paying more. Sleepeezee Fusion Pro Mattress is another useful comparison point.