Get 20% off Casper mattresses for #WorldSleepDay

There are big savings to be made in the US and UK right now

Casper mattress deals
(Image credit: Casper)

It's World Sleep Day on Friday 13 March, and to mark the occasion Casper is offering some dreamy discounts on its super popular mattress range. Right now, UK shoppers can get 20% off using the code WORLDSLEEPDAY (one coupon per customer, valid on everything apart from the Glow Light bedside lamp). 

In the US, there isn't a specific World Sleep Day promotion, but there are still some excellent savings to be had. The Casper sale is in full swing, and you can get up to 20% off with the code CLEARANCE!

We think the Casper is one of the best mattresses you can buy. With four layers of premium, pressure-relieving foam – and a springy, breathable layer on top – it’s cool, supportive and extremely comfortable. And you don't just need to take our word for it: Casper has industry awards and thousands of glowing reviews to prove it.

UK deal: Get 20% off your shopping cart at
Right now you can get a hefty 20% off all mattresses and accessories apart from the Glow Light. Just enter the Casper discount code WORLDSLEEPDAY to redeem – each customer can only use the discount once, so make sure you've got everything you want in your cart before you check out!
Offer runs: Fri 13 to Mon16 March (midnight)

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US deal: 20% off in the clearance sale at
In the States, shoppers save big on mattresses using the code CLEARANCE! at the checkout. There's 20% off the Wave and Casper products, and 10% off the basic Essential range.
Sale ends: 23 March
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For more offers, take a look at our Casper mattress discounts page.