Rated “Excellent” 65,971 reviews
Search Stores Shortlist Basket Menu

Arthur Sleep Royal Arthur Mattress

4.9/5
A supportive mini spring system tops 3000 pocket springs in a deep 36cm build, adding cooling comfort to the firmer feel.
iconFirmer
iconGel Foam
icon3000 Pocket Springs
icon36cm depth
  • Luxury Knitted Soft-touch Cover
  • Supportive Mini Spring System
  • High Density Support Foam
  • Vacuum Packed for Easy Moving
Price Promise

Seen it cheaper somewhere else? We'll match it — that's our Price Promise.

Bed Experts In-Store & Online

Our bed experts are on hand in-store and online to help you find the perfect mattress within your budget.

£599
Sizes
Choose Size
img
Add Divan Base
Make a selection
Delivery
Add to Basket
Description
Specifications
Dimensions
Available in 12 Showrooms
1 Year Guarantee
Flexible Credit Options
The Verdict

What 125 sleepers really think

Rated 4.9/5 from 125 verified reviews
The Arthur Sleep Royal Arthur mattress has received positive feedback for its comfort and support, particularly praised by those experiencing back issues, providing relief and improved sleep quality. It's noted for its firmness balanced with a soft gel cushion, accommodating different preferences. Reviewers appreciate its quality construction and thickness, though some find it excessively high or too firm, which might require adjustment.

AI-generated from the text of customer reviews

Why This Mattress

Why buy the Arthur Sleep Royal Arthur Mattress?

Every mattress is different. Scan for the ones that sound like you — if two or more fit, this is your mattress.

Best For
Back + Stomach
Back or front, never sure?
Steady, even support that keeps your spine level whether you settle on your back or your front.
Helps with
Disturbance
Partner tosses and turns?
Springs that move independently absorb motion, so a restless partner is far less likely to wake you.
Helps with
Allergies
Wake up itchy or sneezy?
Hypoallergenic fillings and covers help keep dust mites and allergens at bay - ideal for allergy-prone sleepers.
Helps with
Pressure Relief
Achy hips or shoulders?
Cushioning comfort layers spread your weight evenly, easing pressure around hips and shoulders.
Thermal Control
Cooling
Sleep hot?
Breathable layers draw heat away from you overnight, for a cooler sleep if you tend to run warm.
Helps with
Anti Bacterial
Freshness a priority?
A treated finish that stops bacteria building up, keeping things fresher and more hygienic for longer.
Helps with
Anti Microbial
Musty smells worry you?
Resists the microbes that cause mould and odours, helping the sleep surface stay clean and fresh.
Suitability
Adults
Buying for a grown-up bed?
Built for full-grown sleepers, with the depth and support to take adult weight night after night.
How It Feels

How firm is it?

Firmer

Firmer is the level of support to the body, suitable for average to heavily weighted people. This is not a comfort rating.

About the Brand
4.83 brand rating

Arthur Sleep is an exclusive brand offering convenient, low-maintenance mattress solutions for all sleepers. With innovative pocket sprung and memory foam hybrids, they prioritize comfort and support. Featuring 100% hypoallergenic materials and a Which? Best Buy endorsement, Arthur Sleep ensures quality and restful nights for years.

View all Arthur Sleep
Award Winner

Recognised where it counts

Which? Best Buy June 2025

Which? Best Buy June 2025

Which? Best Buy Double Mattress
Real Sleepers

What our customers say

4.9
Product Rated 4.9 Stars
125 reviews
Average Customer Ratings
Comfort4.9
Durability4.8
Quality4.9
Value for money4.7
Rating Snapshot
5 stars
111
4 stars
12
3 stars
2
2 stars
0
1 stars
0
Excellent111
Great12
Average2
James Moore
Customer Rated This 5 Stars 5/5
26 Sep 2025
This mattress is extremely comfortable and supportive. We've only had it a few weeks so I can't comment on durability or how it performs during a heatwave, but we're very pleased with it so far. It's significantly deeper than our previous mattress so, as I'm quite short, I've had to work out a new technique for getting into bed! However, my husband is average height and loves the higher profile. Overall, we're both delighted with our new mattress and improved sleep.
Value5
Durability5
Quality5
Comfort5
Jordan Barnes
Customer Rated This 5 Stars 5/5
28 Jan 2026
The bed is extremely comfortable, when you first lie on it, you kind of feel like it's quite hard. But then you sink into the jail topper so it gives you that Very structured feeling when laying on it. But also, when you then think about where your body is laid, you realise that your body is being cushioned by the gel. This bed comes with a really deep matress, which is ideal for me as it alleviates my stress on my spine when getting in and out of bed
Quality5
Durability5
Comfort5
Value5
M Golding
Customer Rated This 5 Stars 5/5
09 Jul 2025
I love this mattress so far I like a soft mattress but my husband is a very big man so he needs a firm one or it will just sink but this one is a great for both of us it's very firm but still soft somehow. We've only had it a few months so I can't say how long it will last but so far so good. I also like the fact it's a dark grey so can hide any marks or stains spilt better than the last white one.
Durability5
Comfort5
Quality5
Value5
Jason Campbell
Customer Rated This 5 Stars 5/5
09 May 2026
Not cheap, but worth the extra cost over a cheaper mattress. Really good quality and very comfortable if you need a firmer mattress for support. The topper gives it a little bit of softness along with the firm base which helps. Very thick, so be aware as it makes the bed high, but you soon get used to it and appreciate the comfort.
Comfort5
Value4
Quality5
Tim Anderson
Customer Rated This 5 Stars 5/5
21 Oct 2025
Was nervous ordering online without trying first but it seems good quality at at decent price and is very comfortable so far … just hope it lasts as long as my old mattress which made it to ten years plus with no real problems. Just got a bit tired after moving house it was never quite the same but new mattress so far so good ??
Durability5
Quality5
Comfort4
Value5
Ryan Vale
Customer Rated This 5 Stars 5/5
16 Jan 2025
Quality mattress, very comfortable, went for a firmer one this time to help with my sore back and so far so good, I can’t give it a durability score cause I’ve only had it a short while but it looks like it’s gonna last ?? Definitely recommend
Comfort5
Quality5
Value4
Viewing 1 to 6 of 125
Our Promise

The Royal Arthur Mattress has

A 60-night sleep trial Sleep on it at home — love it, or exchange it between nights 30 and 60.
A 1 year guarantee See exactly what's covered, and for how long.
Price Match Promise Seen it cheaper somewhere else? We'll match it.
·
Good To Know

Frequently asked questions

Is this mattress suitable for people with allergies?
Yes, the Royal Arthur mattress is recommended for allergy sufferers due to its specific fillings and fabric, which help reduce allergens.
How long does it take for the mattress to fully expand after unpacking?
After unpacking, the mattress should be allowed to fully expand for about 4 to 24 hours before use.
Does this mattress need to be turned over regularly?
The Royal Arthur is a one-sided mattress, so there is no need to turn it over, but it is recommended to rotate it periodically for even wear.
What kind of support does the mattress provide?
The mattress features a supportive mini spring system combined with high-density support foam, which offers a body-moulding experience and helps to alleviate pressure points.
Is the cover of the mattress removable for cleaning?
The luxury knitted soft-touch cover is not removable, so cleaning it would involve spot cleaning rather than removing it completely.
Are there handles on the mattress for moving it around?
Yes, the Royal Arthur mattress has handles attached to the border, which make it easier to rotate and manoeuvre.
What is the delivery method for the mattress?
The mattress is delivered rolled up, making it easy to handle and manoeuvre through doorways and tight spaces.
Is this mattress quiet when moving during the night?
Yes, the pocket sprung design allows each spring to move independently, providing a quiet night's sleep without the noise often associated with traditional spring mattresses.
What kind of warranty comes with the mattress?
The Royal Arthur mattress comes with a 10-year warranty, giving you peace of mind regarding its durability and quality.
Is this mattress suitable for heavier individuals?
The high-density support foam and supportive mini spring system are designed to provide adequate support for various body weights, making it suitable for heavier individuals.

60-night sleep trial: exchanges only, not refunds. Activated by purchasing a mattress protector at the point of order. Request your exchange between nights 30 and 60 of the trial; a £50 exchange fee applies. Full terms.

Recommendation rate: the percentage of verified Trustpilot reviews for this product with a rating of 4 stars or more, rounded down.

Header