Casper mattress

Casper ‘bed in a box’ mattress review

The Casper mattress is one of many ‘bed in a box’ style mattresses available right now. Offering the standard 100-day trial and free return (for a full cash refund), Casper and its competitors have truly disrupted the mattress market, which traditionally sees expensive mattresses, with few features and no returns on offer, at least not for a full refund. Let alone the lack of a 100-day trial.

So, is the Casper as good as a traditional mattress, and do the features touted by the company stand up? Or is their 100-day trial for a full refund going to come in rather handy? Well, read our full review of the Casper to find out whether you should give it a shot.

Interested in other ‘bed in a box’ mattresses? Read all of our reviews here.


Before we jump into the review, let’s take a look at what the Casper mattress offers.

The Casper uses a combination of memory, comfort, and support foams. Unlike other mattresses, where memory foam is the very top layer, it makes up an under-layer in the Casper, with a ‘breathable comfort layer’, made of open-cell foam, on top, providing the sink. The memory foam is beneath, with a further two layers of foam beneath this adding additional support, including an ‘adaptive transition foam’ layer for weight distribution.

To get super technical, the layers are made up of; high elasticity comfort foam, visco elastic memory foam; proprietary transition foam, polyurethane support foam and all encapsulated within a polyester/polypropylene cover.

The Casper is manufactured in the UK, which is a plus for us, as a UK based blog, and Casper also claims to exclusively work with partners with integrity – another plus.


We’re going to start the review in the order a customer would experience the Casper, and it all begins with the purchase. We’re reviewing the king size mattress, coming in at a reasonable £600. This is £200 less than my current mattress cost (a premium DFS traditional pocket spring and memory foam hybrid mattress) so to me, £600 is good value.

Yes, there are mattresses that cost much less, and many customers wouldn’t dream of spending any more than £100 for a mattress. But, if you’re reading this review, or are a regular reader of Pixel Health, then we can safely assume you value your health and understand spending big on an item that you’ll spend a third of your life on is worthwhile.

Plus, the Casper has a 10-year warranty, so that’s only £60 per year.


Next up is getting the mattress to you. It’s a strange feeling buying a mattress without testing it. My previous experience was to go to Dreams, Benson for Beds, DFS and all the mattress stores I could find to test out and discover the ‘perfect mattress’. But with the pressure of the salesperson, other customers, and trying to manage a rogue child, you get mere minutes to test the thing out.

The first chance you actually get to test the Casper is once it is delivered (via free delivery). After dropping £600, you’d be pretty keen to try it as soon as possible. Thankfully, the Casper arrived double quick; it was ordered on a Friday and arrived on a Monday. Casper doesn’t appear to make any promises on delivery, let alone the next business day arrival I experienced, so don’t expect this to be universal. Saying that, I live in a ‘hard to reach’ area, according to all internet providers, so city-dwellers will likely see their Casper arrive just as fast, if not sooner.

Sadly, the box arrived a little tattered, which didn’t marry up with the slick purchasing experience and images shown on the website. Let’s give them the benefit of the doubt and put this on UPS, their delivery provider in the UK.


Mattress arrived. Time to test it out. Well, hold your horses; first, we need to get it on the bed and allow it to rest for a couple of hours. I let it rest for a full day, just to make sure.

After a 24 hour wait, I gave the Casper a whirl. The sink in the mattress as you sit down is super comfortable and gives the impression that it is going to be a soft mattress. But once you lay down, it is clear the mattress is medium-firm or firm. It doesn’t sink too much once your weight is distributed, which is good since the likes of Tempur can restrict movement, and the supportive layers beneath are clearly at work – the body really feels like it is being lifted by some magical force. Probably foam though.

Of course, the first catnap isn’t enough for a review. I tried the Casper for a full 2 weeks before writing my thoughts, and after 14 nights on the mattress, I can reveal that it provides a very good nights sleep. I didn’t wake up in the middle of the night once and I woke up refreshed. Most notably, I didn’t appear to dream as much. A little Googling shows that this is a sign of a good night’s sleep. Although the science behind this is a bit iffy, I can anecdotally back this up and feel the better sleep was due to the Casper.

So, it seems, the Casper is a dream-free mattress – and that’s no bad thing.


Casper claims that their mattress is the internet’s favourite mattress, and we can certainly see why. This is the first ‘bed in a box’ mattress review for us, but compared to a traditional pocket sprung and foam hybrid mattress that I spent £800 on (after very careful selection) the Casper comes out trumps.

The only downside was the state of the box on arrival, but this certainly didn’t translate into a damaged mattress and affected nothing whatsoever in terms of comfort. Plus, next business day delivery was a pleasant surprise.

I would certainly recommend the Casper to anyone looking for a new mattress. See below for Pixel Health’s official score for the Casper, and if you fancy trying it out yourself, make sure to click the affiliate link below to get £50 off.

Get £50 off a Casper mattress with this link

Comfort is king, so it makes up 80% of the total score.

The Breakdown


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