PurrJoys 3FT Single Mattress 90x190x25cm (10 Inch) H3 Firm Cooling Gel Memory Foam with Washable Zipper Cover
Product description
What this mattress is for
If you’re shopping for a single mattress that tries to cover a lot of everyday needs in one go, the PurrJoys 3FT Single Mattress is built around a fairly clear theme: firm, supportive comfort with pressure relief, plus a cooling approach and an easy setup. It’s aimed at people who like a more grounded feel (the listing calls it H3 firm) rather than something that sinks deeply.
The “single” format and the 3FT size make it a common choice for guest rooms, kids’ rooms, or as a practical bed solution when you don’t want to overcomplicate things. On paper, you’re getting reinforced edge support so you can use the sides without that sinking feeling, and a cooling setup designed to help you sleep more comfortably on warmer nights.
Key features you’ll feel (not just read about)
Reinforced edge support
One of the more convincing parts of this mattress, based on the description, is the reinforced edge support. In real life, that matters if you often sit on the edge to get dressed, or if you tend to sleep right up close to the side. Cheaper mattresses can sag near the perimeter over time, which makes the bed feel smaller and less secure.

Here, the reinforced perimeter approach is meant to reduce edge sagging “corner to corner”, so you should feel more stable when using the full surface area.
4-layer comfort with pressure relief and spinal support
The comfort system is described as four foam layers working together to balance support and softness. The goal is pressure relief at common hotspots like the shoulders and hips, while also helping maintain spinal alignment throughout the night.
It’s worth noting a practical limitation: if you’re very sensitive to firm mattresses or you prefer a slow, deep “hug”, a firm H3 feel may not be your favourite. Memory foam can be great for pressure points, but firmness still affects how much you sink.
Cooling comfort with cooling gel memory foam


Heat build-up is a common complaint with memory foam, so the inclusion of cooling gel memory foam, along with a breathable, skin-friendly cover and airflow foam, is designed to keep airflow moving and help dissipate heat.

This doesn’t magically turn the mattress into a refrigerator. Cooling benefits vary a lot depending on your room temperature, bedding, and your own sleep preferences—but if you tend to sleep warm, it’s at least a targeted design rather than a generic “all season” claim.
Minimal motion transfer for shared sleeping
The listing highlights individually pocketed springs intended to respond independently to movement, helping absorb motion before it spreads. For couples (or anyone sharing a bed), the benefit is less disturbance when the other person moves, turns, or gets up.
That said, if you’re buying a single mattress mainly for one person, you may not “use” this feature as much—still, it can reduce the day-to-day bumps if you’re a restless sleeper.
What to know about setup and the cover
Easy setup in a box

The mattress is described as coming with easy setup “in a box”. That usually appeals to anyone who doesn’t want to wrestle with a bulky roll in the room, or who prefers a straightforward delivery and unboxing process.
A quick reality check: all mattresses that arrive compressed/rolled typically need some time to fully expand after unboxing. If you’re planning to make the bed the same day, leave a bit of flexibility.
Washable zipper cover
Another practical win is the washable zipper cover. If you want an easier way to keep the sleep surface fresher—especially for households with kids—this is the kind of feature that can actually get used. Just be sure you’re comfortable handling the cover (zips, removal, and re-fitting) as part of your routine.


Certifications and peace of mind
The description states that the foams are CertiPUR-US® certified and the cover is OEKO-TEX® STANDARD 100 certified, with claims about being free from fiberglass and harmful chemicals. It also includes a risk-free trial of 100 nights and a 10-year warranty.

This kind of information is useful if you care about materials and want some reassurance beyond marketing language. Of course, always read the warranty and trial terms carefully, because coverage details and conditions can vary.
Who it suits best (and who should think twice)
It’s a good fit if you want a firm-leaning single mattress (H3) with pressure relief rather than a super-soft bounce, and you often sit or sleep near the edges and don’t want that “roll-off” feeling.
It makes sense if you share a bed and you’re trying to reduce movement disturbance, and if you tend to sleep warm and want cooling features built into the design.
It may not be a great match if you strongly prefer a plush, sink-in mattress, or if you’re extremely heat-sensitive and expect cooling to eliminate every trace of warmth—cooling helps, but it won’t override room conditions.
Worth considering if you’re after a bed that feels secure on the perimeter, has a washable cover, and fits the everyday rhythm of a home bedroom or spare room—rather than something that’s “only for show”.

Final verdict
Is it worth it?
The PurrJoys 3FT Single Mattress looks like a solid choice on paper for anyone prioritising firm support, better edge stability, pressure relief, and cooling, with the added convenience of a washable zipper cover and delivery/setup in a box. It’s not positioned as a soft, deeply cushioned mattress, so if you chase that kind of feel, you may find the H3 firmness too much.


Buy it if your routine includes using the edge of the bed, you share sleep space sometimes, and you want cooling measures rather than hoping for the best. Skip it if you know you dislike firmer mattresses or you expect cooling to fully solve temperature issues regardless of bedding and environment.
Mini FAQ
Is the cover fully washable?

The listing states there’s a washable zipper cover. That suggests you can remove it for washing, but exact machine-wash instructions aren’t provided here—check the care guidance included with the product.
Does it come already set up?
No—setup is described as easy “in a box”, which usually means it’s delivered compressed and needs time to expand.
Will it suit couples?
The mattress is described as designed to minimise motion transfer using individually pocketed springs, which can help when one person moves and the other wants to keep sleeping.
Is it safe to use with kids?
The description mentions CertiPUR-US and OEKO-TEX certifications and no fiberglass/harmful chemicals, which is reassuring from a materials standpoint. Still, you should review the warranty and care instructions relevant to your household.
How firm is H3?
The product is described as “H3 firm”. The exact feel can vary by person, but if you prefer medium-soft or very plush mattresses, firm may not be your style.
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