Firmness
Firm
Type
Orthopaedic
Depth (cm)
25
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
1
Price Range
£138 to £214
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.
Choose the Serenade Ortho if you sleep better on a firmer surface and want to keep the cost down. The traditional open coil springs are joined in a lattice design, which means your weight is spread across the whole sleeping surface to ease pressure and help spinal alignment. Above them, soft white fibres take a little of the edge off the firmness, and the woven damask cover doesn't retain heat, a plus if you tend to sleep warm. At £138 to £214 it's a budget option, and the fillings are simpler than pricier hybrids, but for a spare room, a guest bed or a first mattress it does the essentials well.
Key Features & what's inside
- Comfort Layer. Soft white synthetic fibres sit at the top, which means a cosy surface feel rather than a sink-in one. They're durable and resilient, so the layer should hold its shape over time.
- Support System. Traditional open coil springs are interlaced in a lattice design, which means the whole surface works together to spread your weight evenly. That helps relieve built-up pressure and supports spinal alignment, though it does mean more motion transfer than pocket springs if you share the bed.
- Cover. A finely woven damask cover finishes the mattress, soft to the touch and built to last. It doesn't retain heat, which hot sleepers will appreciate.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
Lightweight side sleepers may find the firm feel puts too much pressure on hips and shoulders. Couples who are easily disturbed should note that open coil springs transfer more movement than pocket springs. And if you want deep, plush comfort layers, this simple fibre-topped build isn't it.
Romantica Serenade Ortho Mattress
Across 762 reviews on the mattressonline.co.uk product page it holds a 4.5 rating, with owners reporting it's comfortable and supportive, and several mentioning better sleep and back pain relief. Some note it develops noticeable dips in sleeping areas over time, and a few find it medium-firm rather than fully firm.
Is the Romantica Serenade Ortho mattress firm?
It's rated Firm. That said, across owner reviews some sleepers describe the feel as closer to medium-firm, so if you need a very hard surface it may feel slightly softer than expected.
Does the Romantica Serenade Ortho come with a trial?
Mattress Online, the retailer listing this mattress, offers a 100-night trial. This is the retailer's own offer rather than a manufacturer promise, so if you buy elsewhere the terms may differ.
What guarantee does the Romantica Serenade Ortho have?
Mattress Online lists a 1 year guarantee on this mattress. That's shorter than many brands offer, which is one of the trade-offs at this price.
How deep is the Romantica Serenade Ortho mattress?
It's 25cm deep, so standard fitted sheets should fit without any trouble.
What sizes does the Romantica Serenade Ortho come in?
It's available in UK Single, Small Double, Double and King, priced from £138 to £214 depending on size. There's no Super King option, so couples wanting the widest bed will need to look elsewhere.
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