Available 
Hypnos Cawthorne Support Mattress
from £504-£818.
£504-£818
Sizes tracked: Single, Small Double, Double, King Size, Super King
Hypnos Mattress
Hypnos Cawthorne Luxury Mattress review
Hypnos Cawthorne Luxury Mattress is a medium-feel Hypnos mattress with 1400 pocket springs, wool and cotton comfort layers, and a mid-range price band to compare before you buy.
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Last verified: 2026-08-03
Quick verdict
Hypnos Cawthorne Luxury Mattress looks like a sensible shortlist choice for shoppers who want a medium feel rather than a very soft or very firm mattress. With a tracked price range of £458 to £798, it sits in the middle of the comparison set rather than as an obvious bargain or premium outlier, so it is best judged on fit, size and trial terms. Check live size and stock before buying, especially if you want the Super King.
Available sizes and prices
Hypnos Cawthorne Luxury Mattress is listed with 5 size options from £565-£915. 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 | £565 | Check retailer | 2026-08-03 | View |
| Small Double | Check retailer | £705 | In stock | 2026-08-03 | View |
| Double | Check retailer | £705 | In stock | 2026-08-03 | View |
| King Size | Check retailer | £785 | In stock | 2026-08-03 | View |
| Super King | Check retailer | £915 | Check retailer | 2026-08-03 | View |
Key product details
These are the retailer details worth checking first for Hypnos Cawthorne Luxury Mattress: Brand: Hypnos; Type: Mattress; Sizes tracked: Single, Small Double, Double, King Size, Super King; Price range: £565-£915. 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 | £565-£915 |
| Owner rating signal | 4.5 out of 5 shown; review volume needs checking with the retailer |
| Last checked | 2026-08-03 |
What the retailer page shows
The Mattress Online product page lists 1400 ReActive pocket springs, wool and cotton fibre comfort layers, a medium firmness rating and a 26cm depth. It is single-sided, handcrafted in the UK, and comes with a 100-night comfort trial plus a 5-year guarantee. Those are the key facts to compare with similar Hypnos and pocket-sprung mattresses before deciding whether the construction and care routine suit you.
What stands out from the comparison research
The strongest shopper takeaway is that this is positioned as a balanced, natural-fibre pocket-sprung mattress rather than a foam-led or ultra-plush model. The tracked sizes run from Single through Super King, with prices from £458 to £798, so it can suit smaller rooms as well as larger beds if stock is available. Review evidence is positive on the retailer page, but exact independent evidence for this SKU is limited, so treat the rating as a helpful cue rather than proof of a active verdict.
Buyer trade-offs to weigh up
The main trade-off is feel: medium firmness should suit many everyday sleepers, but shoppers who know they prefer a clearly softer or firmer surface may want to compare alternatives first. Single-sided construction is convenient because you do not need to turn the mattress, though buyers who like a turnable design may prefer a different model. Also check the 100-night trial conditions carefully: Mattress Online requires at least 30 nights of use, a protector bought with the mattress, and a £49 exchange fee.
Price and value benchmark
At £458 to £798 across the tracked sizes, the Hypnos Cawthorne Luxury Mattress lands close to the comparison median of £503.50, so it is neither a budget pick nor a clear luxury outlier. That makes value depend on whether you want the medium feel, the 1400-spring construction and the wool-and-cotton comfort layers enough to justify the price. Compare the price jump between sizes, because the King Size and Super King steps may change the value picture quite a bit.
Specs versus nearby alternatives
Compared with nearby alternatives, the Cawthorne’s 1400 pocket springs and wool/cotton comfort layers put it firmly in the traditional pocket-sprung camp, while foam-led mattresses may feel more contouring or modern in feel. Its 26cm depth also matters in practical terms, because it can affect bed-frame clearance, headboard proportions and bedding fit. If you are choosing between the Hypnos Cawthorne Luxury Mattress and other Hypnos options, check whether you want this medium, single-sided profile or a different feel and price band.
How to read the review evidence
The visible retailer rating is 4.5 out of 5 from 64 reviews on the product page source used in research, which is a useful sign but not the same as independent product assessment. Another product-data benchmark shows a 4.5 average rating with no meaningful review count, so the review picture should be treated cautiously. In other words, there is positive retailer feedback, but not enough exact-product independent evidence to build a hard verdict around it.
Who it suits
This mattress should suit shoppers who want balanced comfort and support from a medium-feel pocket-sprung design, especially if they prefer a natural-fibre comfort profile over foam-led feel. The Hypnos Cawthorne Luxury Mattress uses 1400 ReActive pocket springs, wool and cotton layers and a 26cm single-sided build, so it is a practical shortlist option for everyday bedrooms where you want a little more traditional structure. It also suits buyers who want single-sided convenience and a broad size ladder, from Single at £458 through to King Size at £718, with Super King listed at £798 when available.
Who should avoid it
If you already know you prefer a very soft or very firm mattress, the medium feel may be too middle-of-the-road. Shoppers who want a turnable mattress should also look elsewhere, because this model is single-sided. It is also a better fit for buyers who are comfortable with the 100-night trial terms, including the protector requirement and £49 exchange fee, rather than anyone expecting a simple no-conditions comfort policy.
Comfort and support
Comfort comes from the wool and cotton fibre layers, while support is delivered by the 1400 ReActive pocket springs and the medium firmness rating. That combination suggests a mattress aimed at everyday balance rather than an ultra-soft or extra-firm feel. The 26cm depth may also help shoppers who prefer a fuller mattress profile, but you should still check bed-frame, bedding and topper compatibility before adding it to basket.
Value judgement
Value here depends on whether you want the specific mix of Hypnos branding, 1400 pocket springs, natural-fibre comfort layers and a medium feel at a mid-range price. With five size options and a starting price of £458, it offers a fairly wide fit for different bedrooms, but the Super King is currently shown as out of stock in the tracked variants. Check the live price and availability on Mattress Online before deciding, because the best value may be in the size that is actually available now.
Good alternatives to compare
The closest alternatives to compare with Hypnos Cawthorne Luxury Mattress include Hypnos Cawthorne Support Mattress, Hypnos Cawthorne Deluxe 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 Deluxe Mattress
from £489-£819.
£489-£819
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 the Hypnos Cawthorne Luxury Mattress a good pick for medium comfort and support?
It looks like a strong shortlist option if you want a medium-feel mattress with 1400 pocket springs and wool-and-cotton comfort layers. The balance of support and comfort should suit shoppers who do not want an obviously soft or firm surface, but you should still compare the current price and live stock.
What makes the wool and cotton comfort layers different from foam-led mattresses?
Wool and cotton usually signal a more traditional, natural-fibre comfort profile, while foam-led mattresses often feel more contouring or body-hugging. On this Hypnos model, the comfort layers sit on top of 1400 ReActive pocket springs, so the overall feel should be judged as a pocket-sprung mattress rather than a foam mattress.
Is the single-sided design easier to live with than a turnable mattress?
For many shoppers, yes. A single-sided mattress is simpler because you do not need to rotate it for turning, although you may still want to rotate it head-to-foot if the retailer recommends that. If you specifically want a mattress you can flip, this one is not the best match.
How does the 100-night comfort trial work and what are the conditions?
Mattress Online says the trial requires at least 30 nights of use, a protector bought with the mattress, and a £49 exchange fee. That means the trial is useful, but not completely friction-free, so check the conditions before buying if the return path matters to you.
Does the size range and price ladder make it good value for different rooms?
It can, because the tracked sizes run from Single at £458 to Super King at £798, with Small Double, Double and King Size in between. That range gives shoppers flexibility for guest rooms, smaller bedrooms and larger master beds, but live stock still matters.