Firmness
Firm
Type
Hybrid
Depth (cm)
25
Number of Layers
6
Trial Period (nights)
100
Warranty (years)
5
Price Range
£273 to £557
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
If you wake with aches or you've been told you need firmer support, this is the sort of mattress designed with you in mind. The firm pocket spring unit and layered foams focus on spinal alignment, which means your hips and shoulders are held level rather than dipping. The bamboo charcoal memory foam absorbs moisture and lets air flow through, a genuine help if memory foam usually leaves you feeling warm. Yes, it's firm, and firm isn't for everyone, but if that's what your back needs the depth and layered construction here offer real substance for the price. MattressOnline, the retailer listing it, offers a 100-night trial, though you'll need to buy a mattress protector from them to qualify.
Key Features & what's inside
- Knitted cover with Bamboo. A soft knitted cover woven with bamboo fibres, which means the surface feels cosy from the moment you lie down. It adds a slightly luxurious finish to an otherwise no-nonsense mattress.
- Bamboo Charcoal Memory Foam. A 3cm layer with an open cell structure, so air flows through rather than getting trapped around you. It also absorbs moisture, which helps you feel fresher through the night.
- Ortho Comfort Foam. A 3cm layer that adds a supportive feel just beneath the surface. It's designed to help ease aches, cushioning you before the firmer support below takes over.
- Pocket Springs. 2,500 Ortho Firm pocket springs, each encased in its own cloth pocket, which means they respond to your movement individually. You get support tailored to where your body needs it, with less disturbance from a partner shifting about.
- Reflex Foam. A supportive foam that moulds to your body, which helps keep your spine aligned. It personalises the feel without softening the overall firm support.
- Core Support Foam. A base layer there to provide maximum support and stability. It underpins everything above it for a consistent, dependable feel.
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Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
This is a firm mattress, so if you're a lightweight side sleeper or simply prefer a soft, cradling feel, it's unlikely to suit you. Owner feedback also suggests the firmness can land differently from person to person, so anyone wanting a guaranteed medium feel should look elsewhere.
Mlily Bamboo+ Superb Ortho Memory 2500 Pocket Mattress
Across 66 verified reviews on mattressonline.co.uk, rated 4.7 out of 5, owners commonly report comfortable, supportive sleep and a reduction in back pain, though opinions split on firmness, with some finding it firmer than expected and others less so. A few note it needs time to unroll and expand fully on arrival.
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How firm is the Mlily Bamboo+ Superb Ortho Memory 2500?
It's rated firm, built around Ortho Firm pocket springs and supportive foam layers. That said, across owner reviews some people found it firmer than expected while others found it less firm, so treat the rating as a guide rather than a guarantee.
Does the Mlily Bamboo+ 2500 come with a trial and guarantee?
MattressOnline, the retailer listing this mattress, offers a 100-night trial and a 5-year guarantee. The trial requires you to buy a mattress protector from MattressOnline to be eligible, and these terms are the retailer's own, so they may not apply if you buy elsewhere.
Is the Mlily Bamboo+ 2500 good for hot sleepers?
It should help. The 3cm bamboo charcoal memory foam layer has an open cell structure that lets air flow through, and it absorbs moisture too, which means less of the heat build-up traditional memory foam is known for.
How deep is the Mlily Bamboo+ Superb Ortho mattress?
It's 25cm deep, made up of six layers: a bamboo knitted cover, bamboo charcoal memory foam, ortho comfort foam, 2,500 pocket springs, reflex foam and a core support foam base. Standard deep-fitted sheets should fit comfortably.
What sizes does the Mlily Bamboo+ 2500 come in?
It's available in UK Single, Double, King and Super King, with prices ranging from £273 to £557 depending on size.
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