7 of the best cheap mattress protector deals in the Prime Day sales – upgrade your sleep for under $15/£15

Emma mattress protector with deals graphic overlaid
(Image credit: Emma)

As TechRadar's Sleep Editor, I've been keeping a keen eye on the Prime Day deals to see if there are any bargains on products that'll help you get a better night's sleep. There are few hot deals on mattresses (this Casper bargain is the best one) and toppers (here's the best one), but probably the best selection is on mattress protectors.

This event ends today (11 Oct), and the best offers I've spotted are on mattress protectors – there are a number of good discounts on protectors from big-name sleep brands. 

The best mattress protectors are designed as an extra layer to protect your bed from spills, stains and accidents. Some are waterproof, others are lightly padded, and some are even designed to help kill off bedbugs. If you've invested in the best mattress you can afford, these are an essential extra to keep your purchase clean, fresh, and looking like-new for as long as possible.

They're typically inexpensive, but some top picks are even more affordable right now. Be aware you do need to be an Amazon Prime subscriber to unlock these deals, but you can use your free trial and cancel it down the line if it turns out not to suit you. (And there are plenty of excellent offers on all kinds of tech and homeware, so it's definitely worth taking a look.)

UK mattress protector deals

Silentnight Waterproof Mattress Protector:£10.99 at Amazon

Silentnight Waterproof Mattress Protector: was £14 now from £10.99 at Amazon
Silentnight is a great brand for sleep accessories. This new-and-improved waterproof mattress protector has up to 22% off for Prime subscribers right now. It's fully waterproof, promises to be rustle-free, and fits mattresses up to 30cm deep. If it sells out, then there's the same deal on the previous version

Silentnight quilted mattress protector:£14£10.99 at Amazon

Silentnight quilted mattress protector: was £14 now from £10.99 at Amazon
If you don't need a waterproof protector, this quilted option from Silentnight is a great choice. It's designed to be super soft, secures to your mattress using elasticated straps, and is machine-washable at 40C. There's up to 22% off for Prime subscribers today.

Emma mattress protector:£109£43.60 at Amazon

Emma mattress protector: was £109, now from £43.60 at Amazon
There's a massive 60% off the Emma mattress protector for Prime subscribers. It's waterproof, antibacterial, and also, er... probiotic? It comes very well reviewed, with customers calling out the excellent fit in particular. Emma is an ultra-popular bed brand (the Emma Original is the best memory foam mattress around, by our reckoning).

Utopia Bedding Waterproof Mattress Encasement: £19.99£14.99 at Amazon

Utopia Bedding Waterproof Mattress Encasement: was £19.99 now from £14.99 at Amazon
This Utopia protector is a little different in that it completely envelops your mattress. It's designed to help get rid of bed bugs if you're unlucky enough to have them. This Prime Day deal knocks up to 25% off. 

US mattress protector deals

Serta ComfortSure Mattress Cover: $29.99$24.97 at Amazon

Serta ComfortSure Mattress Cover: was $29.99 now from $24.97 at Amazon
This Serta cover is somewhere between a mattress protector and a mattress pad, as it provides a protective barrier but is also lightly padded, to add some cushioning to your bed. It has a breathable cotton cover with polyester fill, and anchors securely to your bed with an elasticated skirt (suitable for mattresses up to 18 inches deep). The whole thing can be machine-washed. This Prime Day deal knocks up to 21% off for Prime subscribers.

Utopia Bedding Zippered Mattress Encasement: $22.99$11.84 at Amazon

Utopia Bedding Zippered Mattress Encasement: was $22.99 now from $11.84 at Amazon
This protector will fully encase your mattress on all sides. It's entirely waterproof, and can also be used to fight bed bugs. The whole thing can be machine-washed and tumble-dried to keep it fresh and clean. Prime subscribers, or those using their free trial, can get up to 48% off today.

Utopia Bedding Quilted Fitted Mattress Pad:

Utopia Bedding Quilted Fitted Mattress Pad: from $18.99, up to 39% off
This quilted mattress protector has a microfibre cover and is available in a range of colors and lots of sizes, including RV sizes. It's machine-washable and can be tumble-dried on low as needed. The Prime Day deals knocks up to 39% off, although not all sizes are discounted. 

If you were hoping to pick up a new mattress in the Prime Day deals, you're out of luck – none of our best Amazon mattress picks are included in today's offers. However, plenty of our general best cheap mattress picks are discounted, so have a browse there instead.

Ruth Hamilton
Homes Editor

Ruth is TechRadar's Homes Editor, reviewing and writing about everything from air fryers to vacuum cleaners to coffee machines, as well as the latest smart home gadgets. She's here to help you find the perfect kit to upgrade your home. Prior to making the shift to Homes, Ruth was TechRadar's Sleep Editor, testing and reviewing mattresses and other sleep products. She's also a certified Sleep Science Coach.