Diamond Spring Free Deluxe Mattress
- In-stock
- Finance available
- Free delivery
- Returns
- Feature: Hypoallergenic
- Support: Pocket Spring
- Brand: Emma Mattress
From £849.00
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Per-category breakdown below. The composite is the unweighted mean of every scored category, rounded to one decimal place.
- Brand
- Emma Mattress
- Retailer
- Furniture Village
- Customer sentiment
- Good
About the Diamond Spring Free Deluxe Mattress
Last checked
A 29cm all-foam build sits behind the Diamond Spring Free Deluxe name, with no pocket springs despite the spring-led wording. The name is mildly misleading. The support comes from stacked foams: a graphite-infused visco-elastic Diamond Cool layer for contouring and heat movement, a medium-soft HRXComfort layer to stop the surface feeling boardy, and an HRXSupport base intended to hold the mattress flatter under load. For an all-foam mattress, 29cm is a generous depth; the conservative part is the support method, because the firm feel is created through foam density and layering rather than a pocket unit that can react more independently to shoulders, hips and weight differences. Compared with memory-foam hybrids, this should feel steadier and less bouncy, but also less lively at the edge and less responsive when changing position. The cover mix is functional rather than plush: 80% polyester, 19% polyethylene and 1% elastane, removable and washable at 40°C, with the polyethylene doing the cooling-cover work more than any natural fibre content. The graphite foam is a useful upgrade over plain visco foam, although “cooling technology” in an all-foam mattress still means heat management rather than the airflow of a sprung core.
Firm-mattress buyers who want a supportive foam feel are the clearest audience, especially back sleepers and some stomach sleepers who dislike the dipping sensation of softer memory foam. Owner sentiment is unusually one-sided here. Buyers repeatedly describe the mattress as very comfortable, supportive and helpful for back comfort, which fits the spec: a firm foam support base with a softer comfort layer above should give cushioning without the deeper sink of softer boxed foams. The supplied feedback does not show a repeated low-rating complaint pattern, so the sharper cautions come from the care sheet and construction. The slat rule is the practical one: gaps must be no wider than 7.5cm, because wider spacing can encourage excess dipping and affect the guarantee, which makes this a fussier match for older or widely spaced slatted frames than a more forgiving open-coil or pocket-sprung mattress. It also needs airing for 4 hours before use, and the manufacturer treats some settlement indentations as normal, so buyers expecting a permanently flat, showroom-tight surface may be disappointed over time. The firm foam build is less likely to suit lighter side sleepers who need shoulders to sink in easily, and couples with a large weight difference may prefer the independent response of pocket springs. A sensible shortlist mattress for firm-foam loyalists who value a washable cooling cover and back-supportive feel; pressure-sensitive side sleepers and couples prioritising edge strength or spring lift are better aimed at softer memory-foam hybrids or the mid-range pocket-sprung tier.
Pros and Cons
Pros
- Provides excellent back support for users with back pain relief
- Offers a reasonable price for high-quality materials and performance
- Creates a supportive sleeping surface without the feel of pocket springs
- Delivers a refreshing sleep experience with advanced cooling technology
Cons
- May be too firm for light sleepers who prefer a softer feel
- Some buyers experienced initial odour that required airing out
- Not suitable for those who prefer traditional spring mattresses
- Firmness may lead to discomfort for side sleepers needing more cushion
Price Tracker
Written by
Giselle Green, Editor in Chief
Last checked by Giselle Green on . Scoring follows our scoring methodology.
Specifications
Manufacturer specifications without the jargon, easy to scan and compare.
Depth: 29 cm.
Thicker mattress sides raise the sleep surface above the base. Check sheet pocket size and final bed height, because lower bedsteads can become awkward to get out of while shallow fitted sheets may ride up at the corners.
Fillings: Visco-elastic Diamond Cool™ foam with graphite particles, medium soft HRXComfort™ foam, and precision-engineered HRXSupport™ foam.
Graphite-laced memory foam moulds to your shape above a softer layer and firmer base, giving a cushioned surface with steadier resistance underneath. Heat claims may vary under thick protectors and winter bedding.
Cover: 80% polyester, 19% polyethyline, 1% elastane.
Polyester gives the cover a smooth, hard-wearing surface, while the tiny amount of stretch lets it recover after normal bedding changes without bagging. Synthetic fibres may trap more warmth than cotton or wool.
HRXSupport™ foam layer is precision-engineered and guaranteed to keep its shape for 10 years.
Quality support is delivered by the HRXSupport™ foam layer, ensuring decade-long durability. Despite this, heavier individuals may notice minor indentations and should use a mattress topper to enhance longevity.
Pocket springs: No.
Separate fabric-wrapped springs normally flex one by one, and without them the surface may feel flatter across curves rather than locally cushioned. Partners may feel more disturbance from each other at night.
No-hassle 200-night sleep trial with free and easy returns.
Home use over 200 nights gives your muscles time to judge firmness after the first week, once the surface has settled into regular night use. Returns depend on the seller's collection rules and hygiene checks.
20-year guarantee.
Manufacturer cover lasting 20 years offers a route for eligible defects after purchase, easing worry if a fault appears once normal use has begun. Wear, comfort changes and accidental damage may be excluded.
This mattress is made in Ireland.
Factory location affects the journey before the mattress reaches you because a shorter regional route can mean fewer handovers over long distances. It doesn't tell you how it will support, ventilate or wear.
The Emma Diamond Spring Free Deluxe mattress is part of the Emma range at Furniture Village.
Retailer listing sets the mattress sizes and checkout options you see, giving you a tidier comparison ahead of ordering. Check returns and disposal terms separately before assuming every version is covered.
Sizes: Super king, king, double, single.
Different mattress footprints let the bed match your frame and floor space, while changing how much personal room each sleeper has at night. Larger mattresses need matching sheets and leave less clearance.
Requires turning: No.
Single-sided layers keep the cushioned surface on top, sparing you heavy flipping. Rotate it head to toe as the care label advises, because the upper surface takes the nightly load and can settle unevenly.
Mattress type: Foam.
Solid comfort layers compress under you, softening sharper hip or shoulder points while cutting the bounce felt from a restless partner. Edges may dip, and impressions call for regular rotation.
Mattress care: Air for 4 hours before using to remove any odour. Allow at least 4 hours for mattress to attain its full size. Indentations caused by settlement of fillings or body weight are normal and are not considered defects. If used on a slatted bed frame, the space between slats must be no wider than 7.5 cm. Spaces wider than this may cause excess dipping of the mattress and invalidate the guarantee. Always use a mattress protector. Rotate regularly.
Air the mattress for four hours to remove odours. Indentations from filling compression aren't defects, but ensure slats are no wider than 7.5 cm to prevent sagging and maintain the guarantee.
Hypoallergenic.
Low-irritant fillings give mites and mould fewer places to cling, leaving sensitive sleepers less likely to wake with sniffles or itchy eyes. Regular airing and clean bedding remain needed.
HRXComfort™ foam layer lets you snuggle in without sinking down.
Foam under the cover cushions your outline, giving a closer, cushioned surface without the flat drop that softer beds can create. Hot sleepers may prefer a cooler, less enveloping surface.
Sumptuous Emma mattress with advanced sleep technology for deeply restorative sleep.
Soft upper layers cushion the sleeper and spread load across the surface, making longer lying spells less sharp at common sore points. Claims about recovery aren't proof of better sleep.
Emma is the UK’s most awarded mattress brand.
Prize logos won't change the foam or cover beneath you. Use the claim as a reputation cue only, since award panels can judge different things from the support and firmness you prefer.
Cover is removable and washable up to 40° C.
Removing and machine-washing the cover at 40°C keeps your mattress fresh. Intensive washing may wear it out faster, so suit those who use mattress protectors or wash less frequently.
Diamond Cool™ foam layer with graphite particles moves excess heat away from your body.
Graphite particles in the foam draw warmth from your skin, while hot patches should fade faster during the night. Graphite won't chill a warm room or replace breathable bedding.
Firmness: Firm.
Denser padding resists deep sinkage, keeping your pelvis from dropping far into the bed and leaving your spine on a straighter line. Side sleepers may need a gentler surface.
PolarLuxe™ ultra cooling cover is instantly cooling and refreshing.
Fabric at the sleep surface pulls warmth from your skin, and first contact should seem cooler during warm nights. It can't control heat held in duvets or thick protectors.
Layer upon layer of cooling technology and serious comfort.
Cover treatments and internal fillings are meant to shift warmth away from the sleeper, leaving the surface less clammy on warmer nights. Hot rooms can overwhelm it.
Anti-slip bottom cover keeps your mattress in place all night long.
Grippy fabric underneath grips the bed base, and the mattress is less likely to creep out of line after turning over. Smooth bases can allow some gradual shifting.
Frequently Asked Questions For The Diamond Spring Free Deluxe Mattress
The questions below are the most common ones BedBoy readers ask when comparing products in this category. Contact the editorial team with a different question, quoting DIAMMSFD46-001 in the subject line.
Reader reviews of the Diamond Spring Free Deluxe Mattress
BedBoy publishes reader-submitted reviews to broaden the sentiment sample. Reviewer purchase status is not independently verified at submission. For verified-purchase ratings, see the Trustpilot block below. Submit a review, quoting DIAMMSFD46-001 in the subject line.
Reasonable price mattress and super comfortable great purchase!
Wonderful mattress, feel very well supported and most comfortable night's sleep
Great mattress so comfortable and beneficial for my back wish I bought it much earlier
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