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Sleepeezee Jessica 800 Pocket Support Mattress
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Sleepeezee Jessica 800 Pocket Support Mattress

In shortFor back sleepers, I like the Jessica's springy, medium firm pocket support. If you're a lighter side sleeper, I'd look for more give at the shoulder. Read the review

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What our reviewers found

Pros

The Jessica mattress is one of the top mattresses in the Sleepeezee range.

A 10 year guarantee is market-leading, giving huge consumer confidence that will stand the test of time and help justify the price-per-night of sleep for this premium product.

Cons

Being fairly new means that long-term reviews are not going to be in for a few more years but the support and materials are all fairly common for the Sleepeezee range and generally perform well.

The Jessica 800 Pocket Support Mattress is a new product from Sleepeezee that builds upon the foundation of last years Jessica mattress, adding variants around the comfort layer and firmness to suit more people. This version puts a gel foam comfort layer over 800 pocket springs in a 27cm deep, single-sided mattress. I'm generally supportive of gel foam for cooling, it seems to make a difference.

The Jessica is endorsed by Jessica Ennis-Hill, a gold medal Olympian and Dame. She helped design this product due to her belief in sleep and rest being a key factor in training. I always take celeb tie-ins with a pinch of salt though, it still has to feel right when you're actually on it.

The Jessica 800 Pocket Support Mattress is available in a medium firm tension with an impressive pocket spring support layer. With 800 springs in the unit, you will be able to fully appreciate the body contouring on offer. Owners can't agree on how firm it is. One found it "very firm too hard for me" and bought a topper, while another called it "more like a soft to medium" and not supportive enough for front sleeping. Among the happy owners the words that come up are firm and supportive, so I'd back it for back sleepers and treat the medium to firm label as a starting point that your weight will move. That said, if you're a lighter side sleeper, this medium firm can feel a touch pushy around the shoulder, so I'd look for more give there.

In the pocket sprung version, 800 individual pocket springs are constructed from a combination of steel, offering the best of both worlds by combining the bounce of traditional springs and the body contouring and edge to edge support of a good quality and supportive base. The border is foam encapsulated to stop the edge folding when you sit on it, and owners are split on how well that works. One says the sides "don't sink down when you sit on the side", while another saw the edges compressing after two weeks of sitting there for ten minutes morning and night, so if you spend a lot of time sat on the side to get dressed, I wouldn't bank on this being the most solid edge. A gel foam layer over pocket springs should push back quicker than that slow sink you get with deeper memory foam, which I personally prefer as it makes turning over easier.

This mattress is designed to be used on top of a base, such as a divan bed or wooden slatted bed base. To keep your mattress in good condition for as long as possible, we'd also recommend regular rotation between head and foot end every few months. Worth saying, it's the sort of mattress you'll actually need to rotate, it isn't one you can just forget about, and if you're not up for that faff you might find it loses its 'even' feel quicker over time.

The Jessica is hypoallergenic which is great for people who suffer from allergies and is ideal for those who need to get a good night's sleep and suffer from allergies or asthma.

This mattress is available in Single (3ft), Small Double (4ft) and Super King Size (6ft). Just double check the exact measurements if you're putting it into a tight bed frame, some brands can vary slightly and it can be a pain if you're right on the limit.

Corrections

When we get something wrong, we fix it and say so here. All corrections

11 October 2026
We said this mattress was available in any size. It is available in single, small double and super king.
Why you can trust WantMattress We spend hours testing (and/or researching) every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the Sleepeezee Jessica 800 Pocket Support Mattress may feel.

SnoozeScore

Still not sure if the Sleepeezee Jessica 800 Pocket Support Mattress is suitable for you?

Answer 4 quick questions to see how well this mattress suits you.

0%

The Sleepeezee Jessica 800 Pocket Support Mattress appears to be ___ for you.

Your SnoozeScore answers are used to determine whether the mattress may be suitable. Any mattress that scores on or above 70% based on your answers is treated as suitable, while anything less is treated as unsuitable.

Reveal Offer Price and Go To Site

*SnoozeScore cannot anticipate personal comfort level nor are we able to guarantee personal suitability. Always consult with the retailer for specific advise.

Price history

The price graph displays the lowest price over time excluding shipping.

Lowest price we've recorded: £278.00, seen in the last 90 days

Quantitative measurements
Of The Sleepeezee Jessica 800 Pocket Support Mattress
Scored from the build: how this construction usually performs, compared with mattresses of a similar type and price.
Scored from the build: how this construction usually performs, compared with mattresses of a similar type and price.

Suitability

  • Back Sleepers
    ★★★★★
    ★★★★★
  • The amount of support offered from a mattress will vary depending on the firmness of the tension and the type of support layer used. Based on a person of average build.
  • Side Sleepers
    ★★★★★
    ★★★★★
  • If you sleep on your side you typically need a supportive tension that is not too firm, nor too soft. This is because your hips and shoulders need adequate sinkage.
  • Stomach Sleepers
    ★★★★★
    ★★★★★
  • Stomach sleepers need a reasonable amount of tension in the base support layer to adequately offer body contouring and help prevent aches and pains. Results will vary based on your build.

Performance

  • Breathability
    ★★★★★
    ★★★★★
  • Mattresses that feature breathable materials help promote airflow and keep you cool making for a more hygienic night's sleep.
  • Turning on mattress
    ★★★★★
    ★★★★★
  • Certain materials like memory foam can make it difficult to move about on the mattress while you toss and turn. Same too for pillow tops which can create a cloud like sensation which can make manoeuvrability challenging.
  • Stability
    ★★★★★
    ★★★★★
  • Depending on the type of support layer in place can have an impact on stability, edge to edge support and roll together prevention. Pocket springs of a firmer tension will have better stability than open coil soft tension, for example.

Ease of Use

  • Turning handles
    ★★★★★
    ★★★★★
  • Mattresses typically need to be rotated frequently and having turning handles can be massively beneficial, particularly in larger sizes which can become fairly heavy.

Odour

  • Initial Odour
    ★★★★★
    ★★★★★
  • Materials in mattresses, particularly memory foam and rolled bed-in-a-box mattresses can have an initial odour, this is typically short term and reduces considerably within 24 hours.
  • Long Standing Odour
    ★★★★★
    ★★★★★
  • Certain materials inside different mattresses can produce a small odour. Typically this is short term rather than long standing but there are minor exceptions.

Brand Rating

  • Overall Brand Rating
    ★★★★★
    ★★★★★
  • This is based on community driven customer reviews tied to product reviews and grouped together at a brand level to produce a score.
*Assuming average weight, suitability will vary dependant on body type, check your SnoozeScore above for a more tailored guide.
Radar analysis
Of The Sleepeezee Jessica 800 Pocket Support Mattress
Brand: Sleepeezee
Retailer: Mattress Online
Delivery Time: Excellent
Delivery Charge: Excellent
Customer Sentiment: Good
Guarantee: Excellent
Radar Analysis looks at the product, brand and retailer against base norms established within the industry and determines where the product sits by way of established performance metrics.

Reviews

Let us know your thoughts on a product or view reviews from others.

4.2owner rating out of 511 reviewsOur rating 4.8/5
Image of the post author
Verified Buyer
Verified by Mattress Online
5
A very well made mattress that's firm but has a slightly soft top. The sides are firm too, so they don't sink down when you sit on the side, I'm very happy with it. It is very firm though, so I did experience some back pain until I bought a mattress topper. Just thought I'd mention this if someone else is considering purchasing this particular mattress. Beautifully made with lovely materials, I think it'll last for quite a few years.
See more
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Verified Buyer
Verified by Mattress Online
5
Love my new mattress, right balance with comfort and support. Clearly well made high quality mattress.My last sleepezee bed lasted over 10 years, no reason to think this one won't do the same!
See more
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Verified Buyer
Verified by Mattress Online
5
Supportive mattress, firm and great for a good night sleep and good posture, no aches or pains.
Image of the post author
Verified Buyer
Verified by Mattress Online
5
Great service from mattressonlineMattress looked nice
Image of the post author
Verified Buyer
Verified by Mattress Online
5
Soft and supporting
Image of the post author
Emma
Verified by Mattress Online
4
Good Points: A very well made mattress that's firm but has a slightly soft top. The sides are firm too, so they don't sink down when you sit on the side, I'm very happy with it. It is very firm though, so I did experience some back pain until I bought a mattress topper. Just thought I'd mention this if someone else is considering purchasing this particular mattress. Beautifully made with lovely materials, I think it'll last for quite a few years. Improvement Points: Like I mentioned earlier, just a bit too firm. Beautifully made but would benefit from having a bit of springiness - but that's just a personal preference :)
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Lucy
Verified by Mattress Online
2
Good Points: Great service from mattressonline Mattress looked nice Improvement Points: Not supportive Not a medium to firm support - more like a soft to medium I would say Not suitable for front sleepers as not enough support .
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Sarah
Verified by Mattress Online
5
Good Points: Love my new mattress, right balance with comfort and support. Clearly well made high quality mattress. My last sleepezee bed lasted over 10 years, no reason to think this one won't do the same!
See more
Image of the post author
Alasdair
Verified by Mattress Online
4
Early days, but I am concerned about the durability of the edges. After only 2 weeks compression is apparent. I only sit on the bed for the first and last ten minutes of the day
See more
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Matthew
Verified by Mattress Online
5
Good Points: Supportive mattress, firm and great for a good night sleep and good posture, no aches or pains.
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Hiu
Verified by Mattress Online
5
Good Points: Soft and supporting

Questions and answers about the Sleepeezee Jessica 800 Pocket Support Mattress

Common questions answered by our team first, then questions shoppers asked the retailer, with the retailer’s own answers.

Image of the post author
Common question
Are the springs in individual pockets really beneficial for support?

Answer: Yes, the pocket springs in this product are encased in individual cloth pockets. This means they adapt to movement to evenly distribute support to each part of your body, offering a customised sleep experience tailored to your body's specific needs.
Image of the post author
Common question
Does the reinforced edge reduce the 'roll-off' sensation?

Answer: The reinforced edge offers durable edge-to-edge support. This maximises the sleeping surface and reduces the 'roll-off' sensation, allowing you to comfortably sleep or sit right up to the edge of the mattress.
Image of the post author
Common question
Would this mattress suit a vegan lifestyle?

Answer: Yes, it would. This mattress contains no animal-derived materials and is not manufactured in the same space as natural fibres, making it a favourable choice for those on a vegan lifestyle.

Videos about this mattress

Hand picked video that relates to the specifications of The Sleepeezee Jessica 800 Pocket Support Mattress

Everything's Easy When You Sleepeezee
Everything's Easy When You Sleepeezee
By Mattress Online
What are Pocket Springs?
What are Pocket Springs?
By BedStar
Benefits of Gel Mattresses
Benefits of Gel Mattresses
By BedStar
The Sleepeezee Journey
The Sleepeezee Journey
By Sleepeezee

Guides this mattress is featured in

This mattress is listed in 11 of our guides because its build meets what each guide looks for. Each card says what that is.

  • Back pain guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses at medium-firm tension with no pillow top, which keep the spine level.

    Includes comment from 3 registered clinicians
    Read the guide
  • Neck pain guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses at medium-firm tension, which keep the neck in line with the spine.

    Includes comment from a registered clinician
    Read the guide
  • Osteoporosis guide

    Why it’s featured

    This guide lists medium-firm pocket-sprung and hybrid mattresses without memory foam, which are easier to turn on.

    Includes comment from a registered clinician
    Read the guide
  • Hot sleepers guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses with a gel, latex or natural-fibre layer, which let heat out.

    Includes comment from a registered clinician
    Read the guide
  • Older sleepers guide

    Why it’s featured

    This guide lists medium and medium-firm pocket-sprung or hybrid mattresses with a springy top rather than memory foam, which are easier to turn on and get up from.

    Includes comment from a registered clinician
    Read the guide
  • Arthritis guide

    Why it’s featured

    This guide lists medium and medium-firm pocket-sprung or hybrid mattresses with a latex or gel layer, which cushion the joints and are easy to move on.

    Read the guide
  • Anti-allergy guide

    Why it’s featured

    This guide lists medium and medium-firm pocket-sprung or hybrid mattresses that the retailer sells as anti-allergy or hypoallergenic.

    Read the guide
  • Night sweats guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses with a gel, latex or natural-fibre layer, which run cooler than deep foam.

    Read the guide
  • Menopause guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses with a gel, latex or natural-fibre layer, for anyone who runs hot at night.

    Read the guide
  • Back sleepers guide

    Why it’s featured

    This guide lists medium-firm pocket-sprung and hybrid mattresses with no memory foam top and no pillow top, which keep the spine level.

    Read the guide
  • Front sleepers guide

    Why it’s featured

    This guide lists medium-firm and firmer mattresses on pocket springs or latex, with no memory foam or pillow top to sink into.

    Read the guide

Clinicians comment on the condition in each guide, not on individual mattresses.

How we reviewed this product

At WantMattress, we adhere to stringent sourcing standards, drawing from peer-reviewed research, scholarly institutions, medical associations, and firsthand accounts and experience. We refrain from using tertiary sources. To understand how we maintain the accuracy and up-to-date nature of our content, please read further about how we test.

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