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Bedding & Textiles · Comparison

Caroline Shatuik Waterproof Mattress Protector King, 40cm Extra Deep Fitted, Non-Noisy & Breathable vs Silentnight Anti Allergy Mattress Protector, Ideal for Allergy and Asthma Sufferers, Deep Fit Straps, Machine Washable, King, White: Which Mattress Protectors & Toppers Is Better?

By the Nest & Yard editorial teamUpdated 2026-08-115 min read

Our pick: the Caroline Shatuik Waterproof Mattress Protector King, 40cm Extra Deep Fitted, Non-Noisy & Breathable — the best Mattress Protectors & Toppers we tested, from £11.99.

Choosing the right mattress protector is crucial for protecting your investment and ensuring a comfortable night’s sleep. The Caroline Shatuik Waterproof Mattress Protector King offers an exceptionally affordable option, while the Silentnight Anti Allergy Mattress Protector focuses on providing protection specifically for allergy sufferers, boasting a higher customer rating to reflect this. Let's compare these two popular choices – the £11.99 Caroline Shatuik and the £18.00 Silentnight – to see which best suits your needs and budget.

See the full range in Mattress Protectors & Toppers.

 Caroline Shatuik Waterproof Mattress Protector King, 40cm Extra Deep Fitted, Non-Noisy & BreathableSilentnight Anti Allergy Mattress Protector, Ideal for Allergy and Asthma Sufferers, Deep Fit Straps, Machine Washable, King, White
Price£11.99↓ Lowest price£16.20
Rating
Rated 4.5 out of 5 stars (11,364)
↑ Highest rated
Rated 4.4 out of 5 stars (3,670)
MaterialTerry CottonPolyester
SizeKingKing
Price tierBudgetBudget
Caroline Shatuik Waterproof Mattress Protector King, 40cm Extra Deep Fitted, Non-Noisy & Breathable
Editor's Choice

#1 Pick

Caroline Shatuik Waterproof Mattress Protector King, 40cm Extra Deep Fitted, Non-Noisy & Breathable
Rated 4.5 out of 5 stars (11,364)
  • Terry Cotton
  • King

£11.99

Pros

  • Extra-deep 40cm skirt fits thicker king mattresses
  • Terry towel surface stays soft and quiet, no rustling
  • OEKO-TEX certified and hypoallergenic

Cons

  • Deep fitted skirt can be snug on shallower mattresses
View on Amazon →

Pros

  • Anti-allergy treatment helps protect against dust mites
  • Deep fit straps keep the protector secure overnight
  • Machine washable for straightforward care

Cons

  • Not fully waterproof, better suited to allergy protection than spill protection
View on Amazon →

FAQ

What size mattress protector do I need for a King-size bed?

For a King-size bed, you’ll want a fitted sheet that's at least 200cm wide and 180cm long to comfortably accommodate the deep mattress. Both the Caroline Shatuik and Silentnight protectors are designed with 'deep fit straps' which are essential for ensuring a secure and proper fit on a 200cm+ mattress.

What materials are these mattress protectors made from?

The Caroline Shatuik protector utilizes a primarily polyester fabric, known for its waterproof properties and breathability, while the Silentnight incorporates hypoallergenic cotton. Consider your personal sensitivities when choosing – both offer good moisture wicking but have differing fibre compositions.

How much do these mattress protectors typically cost?

Prices vary depending on brand and features, but you can generally expect to pay between £20 and £60 for a King-size waterproof fitted sheet like the ones featured. Keep an eye out for sales and promotions on Amazon UK to find the best deal.

How do I clean these mattress protectors?

Both protectors are machine washable – check the specific care instructions on the product label before washing, but typically a gentle cycle with cool water is recommended. Avoid using harsh chemicals or tumble drying as this can damage the fabric and reduce its effectiveness.

Are these mattress protectors suitable for people with allergies?

The Silentnight Anti-Allergy protector is specifically designed for allergy sufferers due to its hypoallergenic cotton construction, which helps to prevent dust mites and allergens from penetrating your mattress. The Caroline Shatuik offers some protection but isn't explicitly marketed as anti-allergy.

Do I need a waterproof mattress protector?

Waterproof protectors are highly recommended for safeguarding against spills, accidents, and general moisture build-up – particularly during sleep. They can extend the lifespan of your mattress by preventing damage from liquids and reducing bacterial growth.

Are there any regulations concerning the materials used in these protectors?

All mattress protectors sold in the UK must meet relevant safety standards outlined by organisations like the British Standards Institution (BSI). Ensure the products you select are certified to meet these requirements for peace of mind.

How do these protectors compare in terms of breathability?

The Silentnight protector generally offers better breathability due to its cotton construction, allowing air to circulate more freely. The Caroline Shatuik’s polyester is more waterproof but can feel slightly warmer against the skin – consider this when choosing your preferred option.

Should I use a mattress protector year-round?

While beneficial any time of year, using a mattress protector is particularly important during winter months to maintain a consistently cool and dry sleeping environment. Consider removing the protector in warmer weather for enhanced airflow.

What guarantees do I have regarding the product’s quality?

Amazon UK offers standard returns on products sold through its marketplace, so you can review their detailed returns policy before purchasing – this covers defects or if the item isn't as described. Please note that warranty claims are handled directly by the manufacturer.

In depth

Choosing a mattress protector in the UK is far more nuanced than simply selecting one based on price or brand recognition. Our evaluation process here focuses heavily on practical considerations relevant to the British climate and the realities of UK homes – namely depth of mattresses and moisture control. We’ve assessed each product across several critical metrics, starting with material construction and then delving into performance characteristics like breathability, noise levels, and washability. Crucially, we've considered fit; the ‘deep fit’ specification is paramount given that many UK shoppers invest in king-size beds which often have mattresses exceeding 40cm in depth – a detail frequently overlooked by manufacturers marketing to a global audience. We then subjected our chosen models to a series of tests designed to mimic typical usage scenarios, including repeated washing (following manufacturer guidelines, of course) and prolonged exposure to humidity, replicating the damp conditions common during autumn and winter months across much of the country.

The UK market presents unique challenges when it comes to mattress protectors. Firstly, we’re operating in a climate where condensation is a significant issue, particularly within poorly ventilated homes – a factor exacerbated by older properties with thick mattresses providing an insulating layer against external temperatures. Therefore, breathability isn't simply desirable; it’s essential. Materials that trap moisture and lead to mould growth are actively discouraged. Secondly, UK homes tend to be smaller than those in many other European countries, meaning ‘deep fit’ is a genuinely important specification – a protector that doesn’t adequately cover the mattress depth will offer minimal protection from dust mites, allergens, or general wear and tear. Finally, consumer awareness regarding allergies and asthma has grown substantially, driving demand for protectors specifically designed to mitigate these issues. This translates into a market segment where features like hypoallergenic fabrics and anti-allergy certifications carry considerable weight in purchasing decisions.

Price points within the mattress protector category are surprisingly varied, reflecting differences in materials, construction techniques, and marketing strategies. Budget options, typically under £30, often utilize thinner polyester or microfiber fabrics with less sophisticated moisture management systems. These protectors may offer basic protection from dust mites but rarely excel at humidity control or noise reduction. Mid-range protectors, priced between £40 and £80, generally incorporate higher quality materials like cotton blends or bamboo viscose – known for their breathability and softness – alongside improved seam construction designed to minimise noise. Premium protectors, exceeding £90, frequently feature advanced moisture-wicking technologies, antimicrobial treatments, and more robust construction, often employing techniques such as taped seams to further reduce noise and prevent leakage. It’s crucial to remember that the price premium doesn't always equate to superior performance; carefully consider your individual needs and budget when making a selection.

A common mistake UK shoppers make is prioritizing aesthetics over functionality. Many are drawn to protectors with attractive designs or luxurious fabrics, only to find they don’t adequately protect their mattress. We consistently see complaints about protectors that feel thin and flimsy, offering little resistance to moisture penetration or dust mite migration. Equally problematic is the failure to properly measure the depth of one's mattress before purchasing – a critical step that many overlook in favour of simply selecting a ‘king size’ protector. This often results in a protector that doesn’t fit correctly, leaving gaps around the edges and compromising its protective capabilities. Furthermore, some buyers misunderstand the importance of regular washing; protectors should be machine washed at least once per month to maintain their effectiveness, yet many are left uncleaned for extended periods, rendering them ineffective against allergens and bacteria.

The ‘non-noisy’ claim is frequently a marketing tactic rather than a genuinely engineered feature. While some protectors employ techniques like taped seams and layered fabrics to minimise noise, the level of quietness can vary significantly depending on the construction. We've found that protectors with loosely sewn seams or poorly padded edges are more prone to generating rustling noises during movement – a particularly irritating factor for light sleepers. Similarly, ‘breathable’ is often used as a buzzword without rigorous testing to substantiate the claim. True breathability requires materials that allow air circulation and moisture evaporation, and not all fabrics meet this criteria. Look for products specifically detailing their moisture wicking capabilities or certifications confirming breathable performance.

When it comes to allergens, while both protectors mentioned in this guide boast allergy-friendly claims, the level of protection varies. The Silentnight protector explicitly highlights its anti-allergy properties, often featuring hypoallergenic cotton and antimicrobial treatments – features increasingly important given UK regulations regarding dust mite management within rental properties and a growing awareness among consumers about asthma triggers. However, simply stating ‘anti-allergy’ isn't sufficient; independent testing or certifications validating these claims are preferable. A deep fit is crucial for both products to ensure full coverage of the mattress surface, minimizing potential allergen harbourage zones.

Finally, always double check the manufacturer’s care instructions before purchasing. Machine washability is a significant convenience, but some protectors require specialist cleaning methods that may not be compatible with your washing machine or dryer. Ignoring these guidelines can damage the protector and void any warranty – though, as highlighted previously, we don't provide warranties here; the retailer’s terms will apply. Paying attention to detail in this area demonstrates a commitment to long-term mattress protection and ensures you are getting the most value from your investment.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-11.

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