Why Simba's Hybrid Pro Is Its Bestseller

Simba's bestseller, unpacked layer by layer

What it actually does

The Hybrid Pro sits in the middle of Simba's range, built as eight layers working together rather than a single slab of foam.

• 8 layers, 28cm deep, with up to 4,800 springs across the mattress

• Two layers of Aerocoil microsprings (titanium alloy, up to 3,800 combined) sitting near the top for pinpoint, independent support

• Wool comfort layer for breathability, under a zip-off cover with cooling-fabric technology

• Simbatex foam, graphite-infused, claimed to move over 5x more air than standard memory foam

• SupportCore base with up to 1,000 pocketed, tempered steel barrel springs for edge-to-edge support

• Medium-firm feel, which Simba positions as the setting best supported by sleep research

• 200-night trial and 10-year guarantee included as standard

• HeatRelease cooling technology — graphite strips claimed to keep you up to 4.4°C cooler — available as an optional upgrade on this model

How it stacks up against a standard foam mattress

The obvious alternative is a straightforward all-foam mattress: a cradled, contouring feel, but one that can run warm and offer less structured support, especially for two people sharing a bed.

The Hybrid Pro's spring layers are specifically there to counter that — springs compress individually rather than as one block, so they're built to sleep cooler and limit how much you feel a partner moving beside you, while the wool and graphite-infused foam layers are doing the temperature-regulating work foam alone usually can't. For anyone currently on an ageing all-foam mattress and finding it sleeps hot, this is squarely the upgrade aimed at that problem.

The honest downside

The cooling feature Simba leads with — HeatRelease — isn't standard on the Pro, it's an optional add-on, so the model's headline temperature-control tech costs extra on top of an already premium price. It's also worth going in expecting a genuinely firm mattress: reviewers commonly mention finding it firmer than expected in the first week or two, even if most settle into it after that adjustment period.

Price

The Hybrid Pro starts from £899 for the smallest size, rising to £1,399 for a King, with finance options bringing it down to roughly £24–£38 a month depending on size. Worth checking the current site listing, as pricing varies with mattress size and any live promotion.

Bottom line

This is Simba's bestselling mattress, and spending time with the spec sheet makes it easy to see why: it's the point in the range where spring count, layer count, and price line up into what most people actually mean by "a proper hybrid," without tipping into the luxe-tier cost of the models above it. The 200-night trial makes it a low-risk way to test that against your current bed, and for most buyers it'll be the only Simba mattress worth seriously considering. Just factor in the optional cooling upgrade if all-night temperature control is the main reason you're looking at it, since that's not baked into the base price.

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