Why our sleep experts loved it
The Jasmine Traditionally Sprung Mattress is a cheap, soft tension, open coil bed. It has a very clear position as an entry-level product, with prices from around £139 for a single jumping to about £199 for a king, all of which is undeniably cheap for a full-depth mattress with foam comfort layer and a decent 100 night sleep trial. But as someone who has spent time actually sleeping on it, I would characterize this as a very basic product with an old fashioned support core, that I personally would not select as a main bed for the majority of adults.
The Jasmine is a traditional open coil spring unit with a layer of Advanced Comfort Foam on top, quilted into a single fabric cover. It has an approximate depth of 24 cm, arrives vacuum packed and rolled, and is designed to expand fully over the first day or so after delivery. Rated as a soft mattress, it is promoted as being particularly well suited to side sleepers, with the comfort foam providing some cushioning on top of the springs.
This is a product that is best understood as a cheap, simple mattress for lighter side sleepers, children and teens, or a spare room, rather than a long term, every night bed for heavier adults or couples.
Construction & Materials The Jasmine uses a traditional open coil spring unit as its support core. This consists of interlinked steel coils that are connected together in a lattice, which means the mattress moves as a single piece of metal rather than lots of independent springs. It is very much a well established technology that is used in many low cost mattresses, but is undeniably old fashioned when compared to pocket springs or higher density all-foam designs. In practice that means movement transfers very easily across the bed and support is quite uniform rather than tailored to different areas of the body.
Sitting on top of the coils is a layer of what MattressNextDay term Advanced Comfort Foam. This is a breathable synthetic foam, not slow moving memory foam, that is intended to add some surface plushness and provide a little bit of pressure relief. It does soften the feel of the springs, but is not thick enough to fully mask them, particularly if you are heavier or consistently lie on one side for long stretches at a time.
The whole mattress is finished off with a quilted cover. The quilting pattern is achieved by stitching the cover fabric to the top comfort layers, which means you get a flat, lightly padded sleeping surface rather than more exaggerated tufts or bumps. The Jasmine is also double sided, with fillings on both sides and flag stitched handles to make turning and flipping the mattress easier. It is about 24 cm deep, which is a sensible, standard depth that will work fine with most fitted sheets.
MattressNextDay also say it is hypoallergenic and vegan friendly, which means no animal derived fillings and which also implies no memory foam. The mattress is also manufactured in the UK and meets the usual domestic standard for fire resistance, BS7177:2008 low hazard. All of that is not especially notable one way or another, but the point remains that this is built around a basic open coil rather than a more modern or premium support system.
Firmness & Feel The Jasmine is advertised and rated as a soft mattress, and you do get the sense of that when you first sink into the surface. Lying down, particularly on your side, the comfort foam lets you sink in slightly and you do get a bit of that marshmallowy, weightless feeling across your shoulders and hips.
The reality once your body weight engages with the spring unit proper, though, is different. Because they are all connected together, the support provided underneath is quite springy and a little crude in comparison to pocket springs. I would describe the feel of the mattress as soft on the surface but with a basic, bouncy core. It will feel like a soft to soft-medium mattress to light to average weight sleepers, as they will mostly only notice the top foam layer. If you are heavier, the springs are much more likely to come through the comfort foam, especially around the hips when you lie on your side.
In my experience, this only really works as a mattress for lighter side sleepers. Light back sleepers might be okay in the short term, but again if you are heavier or have lower back issues you will probably find your hips fall too far into the mattress. Stomach sleepers are not well served at all, as the soft surface foam and bouncy open coil unit do not help to keep your midsection well lifted through the night.
This is very much borne out in the customer feedback for the Jasmine, with some owners clearly enjoying it as a "lovely and comfortable" bed, but others also finding springs noticeable through the surface and/or that it is firmer and less forgiving than the soft rating might suggest, particularly for adults who use it every night. Taken as a whole, I would say the feel is a bit confused, being soft in theory but without a consistently cushioned feel to it across all body types.
Performance & Support The Jasmine is an open coil system, so the support it provides is that of the classic full coil unit. It will provide basic, whole body support if your expectations are set at entry-level, and will not leave you drowning in a heap of soft foam at the surface either. The open coil unit evenly distributes weight across the surface to a degree, so it is less likely to be hammocked or have big soft spots out of the box than some pocket sprung rivals.
It is only when you step outside that narrow band of lightweight solo sleepers and children that the limitations of the support layer really become apparent. Because all the coils move together, it has little zoning or support targeted around the lumbar area, and any contouring ability is going to be driven by that top foam layer. If the foam is not thick enough to support your body weight, your hips will quickly sink until they meet the resistance of the coil grid, which can feel a bit abrupt and unforgiving at bony points like the shoulders and hips.
Motion transfer is also as you would expect from an open coil unit. When someone turns or gets in and out of bed you feel it across the other side. This is not a problem for a single sleeper, but it can be annoying for couples, especially where one of you is a restless sleeper. Edge support is reasonably good because open coil units generally extend quite far out to the edge of the mattress, but the soft surface means you do experience a slight roll off when sitting right on the very perimeter.
The long term durability of an open coil mattress is also not the greatest for nightly adult use. They can develop dips and squeaks more quickly than the better pocket sprung systems, and this one only has a 1 year guarantee compared to the 5 or even 10 you often find from mid range rivals. Regular turning, which the Jasmine is designed to encourage, will help prolong its life, but I still see this more as a short to medium term option than a bed to buy for the next decade.
Temperature Regulation One thing the Jasmine is quite good at, in fairness, is temperature. The open coil core naturally allows a lot of airflow through the mattress, and this is helped by the Advanced Comfort Foam used here being a standard breathable polyfoam rather than dense, slow moving memory foam. The quilted cover also helps dissipate some warmth rather than seal it in.
In practice I did not find it to be a mattress that sleeps hot. I think you do have a slightly airy feel because you are lying on a relatively simple foam layer over springs rather than embedded in several centimetres of contouring foam. For warm sleepers or as a child's bed that is a positive. You will still want to invest in breathable bedding, but you should not have to worry that the mattress itself is the primary heat culprit.
Practical Features The Jasmine has several practical features that make it an easy bed to live with on a day to day basis, especially if you are buying it for a smaller home or an upstairs flat where weight and maneuverability are factors. It comes vacuum packed and rolled, which means it is much simpler to push through narrow hallways and staircases than a fully expanded bed. Once unboxed and unrolled it is designed to expand further over the next day or two before reaching its full depth and comfort level.
Being double sided is a real benefit at this price, as you can flip and rotate the mattress regularly to spread out wear. That should help delay the appearance of body impressions and help to keep the surface feeling more even. The addition of turning handles is also very welcome, because at 24 cm deep and full size in a double or king this is not exactly feather light to flip over without them.
Hypoallergenic and vegan friendly are both product positions that will appeal if you are looking to avoid animal derived fillings or who simply prefer a simpler, synthetic construction for allergy reasons. It is also UK manufactured and meets the usual domestic fire safety standards, so you are not buying a generic import with no brand association.
In terms of the buying journey, you get free next day delivery to most UK postcodes when ordering before the stated cut off time each day, with optional mattress recycling if you also want your old one taken away. The 100-night sleep trial is generous, requiring you to try the mattress for at least 50 nights before you decide if you want to keep it, and the guarantee is a 1 year manufacturer warranty covering defects. For around £139 for a single and from about £159 to £199 for larger sizes it is a fair price for a full depth, rolled mattress with this level of service, but also very clear where the saving is from more expensive options.
Who it suits Lighter side sleepers on a tight budget
Children, teens and occasional use
Shoppers who prioritize low upfront cost
Who it does not suit Heavier individuals and many adults
Couples and light sleepers
Anyone wanting modern support or deep pressure relief
Value focused shoppers who can stretch a little further
Final Verdict The Jasmine Traditionally Sprung Mattress is as advertised: a basic, soft rated open coil unit with a foam comfort layer, and at a very accessible price. It is not a terrible product, and for lighter sleepers, children or a spare room will absolutely do a job. It sleeps reasonably cool, it is easy to get into the house because it is rolled and the double sided design with turning handles is a nice practical touch at this price point.
But the heart of this mattress is an old fashioned open coil support system that I simply do not rate against the alternatives now available. The support layer feels old fashioned and not particularly refined, the comfort foam is not thick or advanced enough to turn it into a genuinely plush, pressure relieving bed and the short 1 year guarantee tells you everything you need to know about where this product sits in the hierarchy.
If your budget is extremely tight and you need something soft for a light side sleeper or a child's bed, the Jasmine can make sense, if you approach it with realistic expectations. For most adults, especially heavier individuals or couples, I would actively avoid it as a primary bed and steer you towards either a simple reflex foam mattress or an entry level pocket sprung system instead. The price is fair, but the overall package is too basic for me to recommend it as anything more than a stopgap or occasional use solution.
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