How we test products
Our mission is to take the guesswork out of finding the perfect sleep products.
We've dedicated hundreds of hours to testing mattresses and sleep accessories, and rely on a team of testers of differing weights, temperature preferences, and sleeping positions to evaluate each product.
Tested products are granted the Sleep Hero tested stamp of approval, a mark of our review's reliability.
If we haven't personally tested a product, please be assured that we invest significant time and energy into scouring the UK market and researching the best recommendations, and we work with a team of sleep experts who review our articles, ensuring that the insights we provide are not only relatable but also reliable.
Recommended UK Casper mattress alternatives
Like the Leesa mattress, the Casper mattress is unfortunately no longer available in the UK. 😢
However, there are plenty of other great memory foam mattresses to consider.
Below, you'll find our list of the best UK alternatives to the Casper memory foam mattress.
If you're looking for a new mattress, we'd recommend these.
Our favourite memory foam mattresses:
Casper mattress firmness
The Casper Original is a medium-firm mattress.
When we first tested it for our Casper mattress review, we gave it a 6 out of 10 on the Sleep Hero firmness scale, where 1 is the softest and 10 is the firmest.
The following mattresses match this firmness best:
Of these, the Eve Original also best matches the composition of the Casper Original.
If you're trying to find a good alternative that feels most like the Casper, then this is a good choice.
Does the Casper mattress sleep hot?
Memory foam mattresses tend to absorb and store body heat, resulting in a warmer sleep. 🥵
But, the Casper memory foam mattress counteracts this common problem by including unique AirScape technology.
The top layer of the mattress consists of perforated polyurethane foam.
These tiny perforations increase air circulation in the mattress as a whole, allowing heat and humidity to be carried away throughout the night. ❄️
This keeps you cooler and more comfortable.
If you're a very heavy sweater, though, we'd recommend staying away from all-foam mattresses. ⛔️
Pocket sprung or hybrid mattresses are a much better choice for hot sleepers.
This is because the spaces between the springs create natural ventilation channels, increasing air circulation throughout the mattress as a whole. 💨
A pocket sprung mattress with gel foams, like the Happy Beds Ocean Gel 2000 mattress, is also a great option.
Casper mattress UK sizes
Most mattresses are generally available in the standard UK mattress sizes. 🇬🇧
- Casper single mattress: 90 x 190 cm (3’ x 6’3”)
- Casper small double mattress: 120 x 190 cm (4' x 6'3")
- Casper double mattress: 135 x 190 cm (4’6” x 6’3”)
- Casper king-size mattress: 150 x 200 cm (5’ x 6’6”)
- Casper super-king-size mattress: 180 x 200 cm (6’ x 6’6”)
But since the Casper isn't available in the UK anymore, there's no way of knowing which sizes are still floating around in second-hand markets.
Mattress Online, which sells the Casper Hybrid, has the following sizes available:
- Casper Hybrid single mattress
- Casper Hybrid small double mattress
- Casper Hybrid super-king mattress
This is a limited selection, but if you are keen on a Casper Sleep product, this is a good way to go.
What are the American Casper mattress sizes?
In the US, the Casper Original foam mattress is available in a wide range of sizes. 🇺🇸
These include the following: Twin, Twin XL, Full, Queen, King, and Californian King.
Casper mattress height
The Casper mattress has a total height of 24 cm (9.4 inches).
This is slightly lower than the bed-in-a-box standard but on par with the popular Eve Original mattress.
Your standard bedding should also still fit.
Our favourite UK bedding:
What else does Casper Sleep offer?
Casper Sleep USA still offers a range of great sleep accessories. 🛌
- Multiple Casper pillows
- Various Casper beds & frames
- Casper duvets
- Casper weighted blankets
- Casper mattress protectors
- Casper bedding and sheets
- Casper mattress toppers
- An assortment of Casper snoozewear
- The ultra-cute Casper dog bed
Casper US also sells a variety of other mattresses, including the Casper Nova Hybrid, Casper Wave Hybrid, and the Wave Hybrid Snow.
Amazon UK actually still sells a small selection of Casper Sleep accessories, including some pillows, mattress protectors, sheets, duvets, and weighted blankets.
The Casper Original pillow is also still available in the UK via Mattress Online.
Buy Casper pillow UK:
Should you still buy the Casper mattress?
If you bought a Casper mattress before 2020, then you're in luck. 🍀
This is one of the best mattresses on the market and one we'd highly recommend.
But, we wouldn't recommend buying the mattress from unauthorised sellers (or re-sellers) now.
Since Casper Sleep no longer operates in the UK, you're likely to encounter problems when it comes to delivery, trials, returns, and warranty conditions.
You can still buy select Casper sleep products on Amazon though!
For ease of mind, we'd recommend buying a UK memory foam mattress instead.
Take a look at our recommended mattress alternatives below.