Simba Hybrid Professional Evaluation: King for consolation


Combining reminiscence foam with the corporate’s Aerocoil springs, the Simba Hybrid Professional is a bed-in-a-box that delivers the very best ranges of consolation. In my exams, I discovered the mattress agency however supportive in all positions. Due to the inner design and layer of wool, the Hybrid Professional additionally rids any construct up of warmth shortly. Its deepness and the dearth of a detachable cowl are two minor downsides.


  • Very supportive
  • Wonderful warmth dispersion
  • Insulates movement


  • Very deep
  • Cowl isn’t washable


  • UKRRP: £1499
  • EuropeRRP: €998

  • TrialYou possibly can trial the Simba for as much as 200 nights

  • SupplyThis mattress comes vacuum-packed in a field, and must be reduce open and left to broaden

  • TemperatureComprising a number of layers to disperse warmth, the system proved efficient in our exams


Simba was one of many pioneers of the mattress-in-a-box revolution. The Simba Hybrid Professional goes past a fundamental reminiscence foam mattress, including a layer of springs for further consolation.

Delivering glorious help in all of my exams, plus the flexibility to scale back warmth retention, the Hybrid Professional is a effective high-end mattress. A detachable cowl would have been welcome; however this minor difficulty apart, the Hybrid Professional is a top-choice mattress.

Sizes and Trial Interval 

  • 200-night trial interval
  • Single to Tremendous King sizes

Simba sells the Hybrid Professional in a wide range of sizes to go well with nearly any mattress kind, together with Single, Small Double, Double, EU Double, EU Queen, King and Tremendous King. I’ve listed the sizes and base costs under, though there are sometimes massive reductions out there that can scale back these prices.

All mattresses are delivered inside three days of ordering and include a 200-night trial interval. If you happen to don’t just like the mattress at any level throughout this era, Simba will ship a two-man crew to gather it without spending a dime. Fortuitously, Simba doesn’t anticipate you to repackage the mattress. And in case you do resolve to maintain the mattress, it comes with a 10-year assure towards defects.

Design and Layers

  • Springs and reminiscence foam
  • Non-washable cowl
  • Very deep mattress

The mattress arrives wrapped in plastic, inside a cardboard field. Notice that it could require two folks to deal with the unboxing and unwrapping of bigger mattress sizes.

As is the case with different manufacturers of mattress-in-a-box, the Simba Hybrid Professional needs to be left to broaden as soon as it’s free from its wrapping. It takes round six hours earlier than you should utilize the mattress, so I discovered it finest to unpack mine within the morning, giving it the day earlier than I placed on the sheets.

Though the Hybrid Professional is offered in a variety of sizes, all are a chunky 28cm deep – so make sure that your fitted sheets are deep sufficient to cowl it. The mix of my mattress top and mattress top made me really feel like I needed to climb into mattress; that’s alright by me, because it feels extra luxurious to recline at such a top.

Simba Hybrid Pro corner
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This mattress comes encompassed in a mushy, breathable cowl – or sleep floor, as Simba calls it.

Simba Hybrid Pro close-up of top layer
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There’s a zipper that permits you to open the duvet, however that is utilized in manufacturing solely; you possibly can’t truly take away the duvet for laundry as you possibly can with the Emma Authentic. As such, I’d advise that you just put money into a mattress protector for this mattress, and Simba sells an identical mannequin.

Simba Hybrid Pro zip
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Internally, the Hybrid Professional is made up of six layers – making for a sum whole of seven together with the sleep floor). First up is the wool layer, which is sweet for allergy victims, and can both assist to maintain you cool or heat, relying on the season.

Subsequent, there’s the Simbatex foam layer, which the corporate infuses with graphite, utilizing an open-cell design to extend airflow to stop overheating – a typical difficulty with common reminiscence foam mattresses.

There are then two layers of Aerocoil springs, constructed to help your physique, whereas additionally rising airflow.

Subsequent comes a tougher edge help layer, in order that the Simba Hybrid Professional will proceed to supply help for individuals who are inclined to sleep near the sting of the mattress.

Lastly, there’s the chunky multizone foam base that offers the mattress its depth and last layer of help.

Simba Hybrid Pro foam
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This layering implies that, like most trendy mattresses, the Simba Hybrid Professional shouldn’t be turned over. Nonetheless, Simba says that the mattress ought to be rotated as soon as a month for the primary three months, after which each three-to-six months thereafter. This helps to take care of the standard of the mattress, stopping any dips or sagging.

Once more, turning such a beast of a mattress could require two folks: I used to be grateful for the handles on the facet of the mattress, which made this job simpler.

Simba Hybrid Pro handles
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Consolation and Assist

  • Wonderful edge help
  • Sensible help in all positions
  • A agency, however comfy sleeper

To check mattresses, I take measurements in numerous key positions to see how far I sink in, whereas additionally gauging the extent of help.

Sitting on the sting of the Hybrid Professional, I measured a drop of simply 5.5cm. That’s round half of the 10cm drop on my outdated reminiscence foam-topped pocket-sprung mattress. In observe, it implies that the Simba Hybrid Professional supplies help proper as much as the sting. In truth, I by no means felt as if I’d slide off the sting – which is nice, given the peak from which I’d fall.

Simba Hybrid Pro sitting
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Subsequent, I measured the drop when sitting up in mattress studying. My outdated mattress was too mushy – I sank 8cm into it. The Hybrid Professional proved a lot better, with only a 3cm drop. Sitting up on the Simba Hybrid Professional is like sitting on a cushty couch.

Simba Hybrid Pro sat up
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I then moved to the usual sleeping place. Mendacity on my again, I measured the impression on my hips at 4cm and shoulders at 1.5cm, serving to preserve my backbone aligned. Shifting onto my facet, I measured a dip of ****4cm at my hips and 4.5cm at my hips**** CHECK FIGURES BECAUSE BOTH MEASUREMENTS SAY “HIPS” PLUS THEY”RE MUCH CLOSER THAN THE FIRST SET*****; once more, a superb degree of help, holding my backbone aligned. My outdated mattress dipped by greater than 7cm at each factors.

Simba Hybrid Pro side lying
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Sleeping on my entrance, I measured the dip at my abdomen of simply 5cm, displaying a agency degree of help.

General, I’ve discovered the Simba Hybrid Professional fairly a agency mattress, however the help and luxury on provide are glorious. Those that want a barely softer possibility could also be higher wanting elsewhere. Nonetheless, whereas this mattress is agency, it isn’t uncomfortable or like sleeping on a plank.

To judge the mattress with two folks sleeping facet by facet, I used an accelerometer positioned within the place of a second sleeper to measure motion transferral. First, I began by climbing into mattress. The larger the actions within the graph under, the extra motion the accelerometer has picked up. As you possibly can see, there’s a level of motion, however total it’s a delicate graph.

Simba Hybrid Pro movement_ Getting into bed
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Evaluate the identical motion on my outdated mattress, and you’ll see fairly a distinction, with some readings off the size.

Old mattress movement_ Getting into bed
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It’s the same story for turning over on the Simba mattress. The Hybrid Professional insulates motion properly.

Simba Hybrid Pro Movement_ Turning over in bed
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The expertise on my outdated pocket-sprung mattress is way worse; I may really feel each motion of my associate by way of the evening.

Old mattress movement_ Turning over in bed
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With the Simba Hybrid Professional’s glorious movement insulation, a stressed associate received’t smash your evening’s sleep.


  • Comfy to sleep on
  • Warmth will not be retained

A standard criticism levelled at reminiscence foam mattresses is that they’re very popular to sleep on, retaining warmth to a level that makes getting a superb evening’s sleep troublesome. To check the Simba Hybrid Professional’s efficiency on this regard, I laid on my again on the mattress for 10 minutes, after which used a thermal digital camera to judge warmth retention, timing how lengthy it takes earlier than the mattress returns to its ambient temperature.

Following simply two minutes, my define has light considerably, as you possibly can see evaluating it to the unique shot taken simply after I stood up.

As soon as three minutes had handed, my define seems very near the encircling temperature of the mattress. That’s super-quick warmth dissipation and spectacular efficiency. With the rival Hyde & Sleep Raspberry mattress, my physique define was nonetheless clearly seen by way of the thermal digital camera following evaluation after three minutes.

Newest offers

Do you have to purchase it?

In order for you a premium mattress that doesn’t get too scorching and affords loads of help, the Simba Hybrid Professional is for you.

If you happen to want a mattress with a washable cowl, then look elsewhere.

Closing Ideas

The Simba Hybrid Professional is likely one of the costlier mattress-in-a-box mannequin, but it surely’s cash properly spent. Proving supportive with glorious warmth dissipation, it helps you obtain a superb evening’s sleep, regardless of the season. It’s super-deep and extra on the agency facet, so these on the lookout for a extra compact alternative or a mattress that’s softer could need to look elsewhere.

How we take a look at

In contrast to different websites, we take a look at each mattress we evaluate completely over an prolonged time period. We use commonplace exams to check options correctly. We’ll at all times inform you what we discover. We by no means, ever, settle for cash to evaluate a product.

Discover out extra about how we take a look at in our ethics coverage.

Used as our important mattress for the evaluate interval

We use a thermal digital camera to see how shortly the mattress can dissipate warmth for a cushty evening’s sleep.

We measure how far we sink into the mattress in numerous positions to measure help ranges.

We use an accelerometer to measure how motion from one particular person is transferred to the opposite facet of the mattress.

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Is the Simba Hybrid Professional good for facet sleepers?

Measuring the dip at hips and shoulders, this mattress proved supportive for facet sleepers.

Does the Simba Hybrid Professional are available a field?

Sure – it wants round six hours to reinflate earlier than you possibly can sleep on it.

Does the Simba Hybrid Professional have a washable cowl?

No, it is best to actually purchase a mattress protector to make use of with it.

Trusted Evaluations take a look at knowledge

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Mattress sink hip facet

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