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Free next day delivery * Old mattress removal Two million happy customers 60-night sleep trial Rated Excellent - 4.8 out of 5
SleepSoul Space 4000 Orthopaedic Mattress - image 1
97% of customers keep their mattress
SleepSoul Space 4000 Orthopaedic Mattress - image 2 SleepSoul Space 4000 Orthopaedic Mattress - image 3 SleepSoul Space 4000 Orthopaedic Mattress - image 4 SleepSoul Space 4000 Orthopaedic Mattress - image 5 SleepSoul Space 4000 Orthopaedic Mattress - image 6 SleepSoul Space 4000 Orthopaedic Mattress - image 7 SleepSoul Space 4000 Orthopaedic Mattress - image 8 SleepSoul Space 4000 Orthopaedic Mattress - image 9 SleepSoul Space 4000 Orthopaedic Mattress - image 10 SleepSoul Space 4000 Orthopaedic Mattress - image 11 SleepSoul Space 4000 Orthopaedic Mattress - image 12 SleepSoul Space 4000 Orthopaedic Mattress - image 13 SleepSoul Space 4000 Orthopaedic Mattress - image 14 SleepSoul Space 4000 Orthopaedic Mattress - image 15 SleepSoul Space 4000 Orthopaedic Mattress - image 16 SleepSoul Space 4000 Orthopaedic Mattress - image 17 Play Videovideo overlay

SleepSoul Space 4000 Orthopaedic Mattress

5/5
With 4000 pocket springs in a 38cm deep build, orthopaedic support comes backed by gel foam comfort and a firmer tension.
iconFirmer
iconGel Foam
icon4000 Pocket Springs
icon38cm depth
Price Promise

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

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£579
Spread the cost from £57.90/month with V12 Finance — see your options · learn more
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Description
Specifications
Dimensions
10 Year Warranty
Flexible Credit Options
The Verdict

What 31 sleepers really think

Rated 5/5 from 31 verified reviews
The SleepSoul Space 4000 Orthopaedic mattress is praised for its exceptional comfort, firm support, and quality craftsmanship. Reviewers consistently highlight improvements in sleep quality, reduction in aches, and support for back issues. Users with specific conditions such as MS and sciatica found it particularly beneficial. Many appreciated the cooling gel layer and minimal motion transfer. The mattress' weight was noted as a downside by a few. Overall, positive responses dominate the feedback, with many users recommending it highly.

AI-generated from the text of customer reviews

Why This Mattress

Why buy the SleepSoul Space 4000 Orthopaedic 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
Breathable
Wake up clammy?
Airy construction lets heat and moisture escape, so the sleep surface stays fresh through the night.
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
★ 4.61 brand rating

SleepSoul, from family-run Birlea furniture, blends over 20 years of expertise with innovative design to create comfortable, durable mattresses. Renowned for hybrid options and award-winning models, SleepSoul mattresses offer tailored support for an effortless sleep experience.

View all SleepSoul
Real Sleepers

What our customers say

5.0
Product Rated 5.0 Stars
31 reviews
Average Customer Ratings
Comfort4.9
Durability4.8
Quality4.9
Value for money4.8
Rating Snapshot
5 stars
30
4 stars
1
3 stars
0
2 stars
0
1 stars
0
Excellent30
Great1
Derek Moran
Customer Rated This 5 Stars 5/5
05 Jun 2026
I decided for a firmer mattress and took a while but this came out at the top price was just right for my pocket(and thanks for the 18£ of) Only had it a few weeks but as far as it goes I made the right choice handy with the gel mattress to especially as it attached. One thing that may help I moved it myself and boy was it heavy handles at top and bottom maybe an idea for your guys going forward as trying to pull it along from room to room is certainly a two man job I got there in the end myself so now I know how hard it must be for your delivery sriver and his chin they were cheery Ben tho that was hard up two floors so thanks to all involved getting it to me excellent throughout the journey Many thanks Derek
Value5
Durability5
Comfort5
Quality5
Verified By trustpilot verification
Holly Miller
Customer Rated This 5 Stars 5/5
24 Oct 2025
Well made, deep and comfortable mattress for a fantastic price. After shopping around for nearly a month I settled on this one and boy was it worth it! It’s one of the most comfortable mattresses I’ve ever slept on, the quality is unbelievable and at least 50% cheaper or more than the same or similar mattress in stores. It’s orthopaedic but not rock hard, has a lovely cooling gel layer, no noise and movement when the other half turns. 38cm deep which is perfect as I hate low beds. I love it. So far so good.
Quality5
Value5
Durability5
Comfort5
Verified By trustpilot verification
Tammy-taryna Mendez
Customer Rated This 5 Stars 5/5
30 Oct 2025
Extremely happy with this mattress, it is well made and very comfortable, my husband and I are no longer waking up with backache. Bought to replace an old but very expensive Sealy Posturepeadic and we much prefer this one. It was fun unrolling it from the vacuum pack, it hissed and started to expand, all went smoothly without it suddenly flying out and knocking us across the bedroom.
Quality5
Value5
Durability5
Comfort5
Verified By trustpilot verification
Angela Boyd
Customer Rated This 5 Stars 5/5
17 Jan 2025
I've only had my mattress a couple of weeks but i'm really pleased with it so far. It feels really firm which i need for my back & i'm not aching as much as i was when i had a memory foam mattress. I just hope it keeps the firmness for years. I'm loving the height as it's great just to roll off & land on my feet. It feels so comfy even tho it's firm, it suits me fine.
Comfort5
Durability5
Quality5
Value5
Verified By trustpilot verification
Julie Brown
Customer Rated This 5 Stars 5/5
09 Jul 2025
I bought this mattress online with a mattress cover so the 60days exchange was given if needed. However, this mattress is so comfy and I get great night sleep so have not done this. My partner is a major fidget once asleep, but this mattress allows this to happen without me getting disturbed, so 5* for this too.
Durability5
Value5
Quality5
Comfort5
Verified By trustpilot verification
Dennis Trolland
Customer Rated This 5 Stars 5/5
22 Apr 2026
Took a lot of time to make sure I got a mattress that suited me. Glad I went for Sleepsoul Space 4000 with the pillow top. Firm but not too hard and you feel it supporting the contours of your body. Good quality for the price so all in all Im very pleased with my purchase. Thank you
Value5
Comfort5
Quality5
Durability4
Verified By trustpilot verification
Viewing 1 to 6 of 31
Our Promise

The Space 4000 Orthopaedic Mattress has

A 60-night sleep trial Sleep on it at home — love it, or exchange it between nights 30 and 60.
A 97% keep rate Not a survey — our own order data, updated weekly.
A 10 year warranty 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 the Space 4000 Orthopaedic mattress suitable for allergy sufferers?
Yes, the Space 4000 Orthopaedic mattress is recommended for allergy sufferers due to its specific fillings and fabric that help reduce allergens.
How does the micro quilted finish affect the comfort of the mattress?
The micro quilted finish adds a patterned comfort quilt layer that enhances the overall feel of the mattress, providing an extra layer of softness and support.
Do I need to turn the Space 4000 Orthopaedic mattress regularly?
This mattress is one sided, so you won't need to turn it, but it is recommended that you rotate it regularly to ensure even wear.
How does the pocket sprung construction benefit sleep?
The construction of pocket springs involves each spring being housed in its own fabric pocket, which enables them to operate independently. This design offers a moulding effect that conforms to your body, minimising motion transfer and contributing to a more tranquil night's rest.
Can you explain the pillow top effect on this mattress?
The pillow top effect on the Space 4000 Orthopaedic mattress looks separate from the main body but is actually attached with a hidden return, giving it a plush feel with soft fillings for added comfort.
How should I care for the Space 4000 Orthopaedic mattress?
Care for the mattress by rotating it occasionally to maintain its shape and performance, and ensure to keep it clean by using a mattress protector.
What materials are used in the soft foam of this mattress?
The soft foam is made from polyurethane, similar to memory foam but without the added temperature technology, providing a comfortable sleeping surface.
What is the hazard rating for the Space 4000 Orthopaedic mattress?
The Space 4000 Orthopaedic mattress has a Domestic Flammability Rated Source 2. This means it is rated for low hazard and is suitable for general domestic use.
How long does it take for the mattress to fully expand after unwrapping?
Once you unwrap the SleepSoul Space 4000 Orthopaedic mattress, it usually takes between 4 to 24 hours for it to fully expand to its intended shape.
What features assist with moving and adjusting the mattress?
The mattress includes handles attached to the border, making it easier to rotate and position the mattress as needed.
Better Together

Also paired with

Still Deciding?

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More To Explore

Where to next?

SleepSoul Mattresses
SleepSoul Firmer Mattresses
SleepSoul Pocket Sprung Mattresses
SleepSoul Sleepsoul Space Range

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.

Keep rate: the share of this product's delivered orders in the last 6 months that were kept rather than returned. Updated weekly, rounded down, capped at 99%, and only shown where we have at least 30 delivered orders.

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

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