Best Block Mattress Encasements of 2026

Corey Phillips Avatar
Corey Phillips
Last Updated: 11 Feb 2026

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Block Mattress Encasements are a type of protective cover that can be fitted over a mattress to safeguard it from dust mites, bed bugs, and other allergens. These encasements are made of a waterproof and breathable material that is designed to keep the mattress clean and dry. They are easy to install and remove, and can be washed in a washing machine for easy maintenance. Block Mattress Encasements are an effective way to protect your mattress and ensure a healthy sleeping environment.

At a Glance: Our Top Picks

Bed Bugs Mattress Protector - Single Size 90x200cm Cover #TOP 1
Bed Bugs Mattress Protector - Single Size 90x200cm
ftb score rating icon 9.8
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Bed Bugs Mattress Protector - Single Size 90x200cm
#TOP1
9.8
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Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed Cover #TOP 2
Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed
ftb score rating icon 9.7
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Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed thumbnail
Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed
#TOP2
9.7
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Bed Bugs Mattress Protector - Single Size 90x190cm Cover #TOP 3
Bed Bugs Mattress Protector - Single Size 90x190cm
ftb score rating icon 9.5
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Bed Bugs Mattress Protector - Single Size 90x190cm
#TOP3
9.5
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Top 10 Block Mattress Encasements

#TOP 1

Bed Bugs Mattress Protector - Single Size 90x200cm

SafeNight
SafeNight PNT
White
Single - 90 x 200
Bed Bugs Mattress Protector - Single Size 90x200cm Cover
Bed Bugs Mattress Protector – Single Size 90x200cm – Zipped Complete Cover - Blocks Bed Bugs and Dust Mites – Soft Waterproof Cotton Surface – Stretch-Fitted (13–26cm Depth)
ftb score rating icon 9.8
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Features
360° SECURE CLOSURE WITH ANTI-BUG FABRIC – Easy To Fit Thanks To Its Three-Sided Zip Opening, The SafeNight Protector Seals Completely With A Heavy-Duty Zip. A Velcro Safety Tab Locks The Zipper Pull In Place To Block Even The Tiniest Pests From Getting In Or Out.
SAFE NIGHT PROTECTION AGAINST BED BUGS – This Full Mattress Encasement Acts As A Physical Barrier Against Bed Bugs, Dust Mites, And Liquids. Lab-Tested For Effectiveness, It Features A Reinforced Zip And Anti-Intrusion Flap With Velcro To Fully Seal Your Mattress – Without The Need For Treatment, Chemicals, Or Sprays.
SUPERIOR COMFORT: 80% BREATHABLE COTTON – No More Plasticky Feel! The Surface Is Made From Natural Cotton Terry That Stays Soft, Breathable And Quiet Under Your Sheets. Enjoy Peaceful, Sweat-Free Nights With A Truly Comfortable Waterproof Cover — Perfect For Incontinence, Pets, Or Everyday Protection. Machine Washable At 60°C For Easy, Hygienic Care.
PERFECT FIT FOR UK SINGLE MATTRESSES – Designed For Standard UK Single Beds (90x200cm), This Stretch-Fitted Cover Hugs Your Mattress Securely Without Shifting. The Elasticated Sidewalls Adapt To Depths Between 13 And 26cm For A Smooth, Wrinkle-Free Fit.
REINFORCED SEAMS & DURABLE ZIP – Unlike Cheap Fitted Sheets, Our Zip Is Built To Last. The Reinforced Stitching Ensures The Cover Won't Tear Or Come Apart Over Time – Designed For Long-Term Protection And Daily Reliability.
#TOP 2

Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed

Dreamzie
White
Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed Cover
Dreamzie - Waterproof Mattress Encasement 135x190 x30 cm Double Bed - Bed Bug Mattress Protector - Zipped Mattress Protector for Allergiques - Bi-Ome et Oeko-Tex
ftb score rating icon 9.7
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Features
Waterproof And Breathable: The Soft Yet Durable Fabric Features A Silent Waterproof TPU Membrane That Shields Against Spills, Sweat, And Stains. A Reliable Waterproof Mattress Protector That Doesn't Trap Heat Or Make Noise.
360° Zip-Up Protection: This Full Mattress Encasement Wraps Your Mattress On All Sides And Features A Secure Zip Closure To Completely Block Out Dust Mites, Bed Bugs, And Allergens. Ideal For Anyone Seeking A Bed Bug Mattress Protector Or A Mattress Cover With Zip.
Perfect Fit For Every Bed: Available In All UK Sizes — From Single Mattress Cover With Zip To Super King Mattress Protectors. Stretches Easily Over Standard And Deep Mattresses While Staying Snug.
Discreet Comfort, Easy Care: This Zipped Mattress Protector Fits Invisibly Under Your Sheets And Remains Noiseless All Night. Machine Washable And Durable For Long-Term Use — The Best Bed Bug Proof Mattress Cover For Peace Of Mind.
Anti-Allergy & Anti-Bed Bug Barrier: This Anti Allergy Mattress Protector Creates A Protective Shield Against Dust Mites, Pet Dander, And Bed Bugs. Perfect For Allergy Sufferers And Sensitive Sleepers.
#TOP 3

Bed Bugs Mattress Protector - Single Size 90x190cm

SafeNight
SafeNight PNT
White
Single - 90 x 190
Bed Bugs Mattress Protector - Single Size 90x190cm Cover
Bed Bugs Mattress Protector – Single Size 90x190cm – Zipped Complete Cover - Blocks Bed Bugs and Dust Mites – Soft Waterproof Cotton Surface – Stretch-Fitted (13–26cm Depth)
ftb score rating icon 9.5
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Features
360° SECURE CLOSURE WITH ANTI-BUG FABRIC – Easy To Fit Thanks To Its Three-Sided Zip Opening, The SafeNight Protector Seals Completely With A Heavy-Duty Zip. A Velcro Safety Tab Locks The Zipper Pull In Place To Block Even The Tiniest Pests From Getting In Or Out.
SAFE NIGHT PROTECTION AGAINST BED BUGS – This Full Mattress Encasement Acts As A Physical Barrier Against Bed Bugs, Dust Mites, And Liquids. Lab-Tested For Effectiveness, It Features A Reinforced Zip And Anti-Intrusion Flap With Velcro To Fully Seal Your Mattress – Without The Need For Treatment, Chemicals, Or Sprays.
SUPERIOR COMFORT: 80% BREATHABLE COTTON – No More Plasticky Feel! The Surface Is Made From Natural Cotton Terry That Stays Soft, Breathable And Quiet Under Your Sheets. Enjoy Peaceful, Sweat-Free Nights With A Truly Comfortable Waterproof Cover — Perfect For Incontinence, Pets, Or Everyday Protection. Machine Washable At 60°C For Easy, Hygienic Care.
PERFECT FIT FOR UK SINGLE MATTRESSES – Designed For Standard UK Single Beds (90x190cm), This Stretch-Fitted Cover Hugs Your Mattress Securely Without Shifting. The Elasticated Sidewalls Adapt To Depths Between 13 And 26cm For A Smooth, Wrinkle-Free Fit.
REINFORCED SEAMS & DURABLE ZIP – Unlike Cheap Fitted Sheets, Our Zip Is Built To Last. The Reinforced Stitching Ensures The Cover Won't Tear Or Come Apart Over Time – Designed For Long-Term Protection And Daily Reliability.
#TOP 4

Anti Bed Bug Mattress Protector

BLOOM BLENDS
Anti-Bug Mattress protector
White
Double
Anti Bed Bug Mattress Protector Cover
Anti Bed Bug Mattress Protector – 100% Waterproof & Breathable Cover with 3-Sided Zipper | Bed Bug & Dust Mite Proof | Total Encasement, Fits Single, Double, King, Super King | 30cm Deep (Double)
ftb score rating icon 9.4
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Features
100% Waterproof & Breathable Fabric – Featuring An Advanced Nanotech Fabric Membrane, This Protector Blocks Liquids And Stains While Allowing Airflow To Ensure Ultimate Comfort Throughout The Night.
Complete Mattress Protection – BLOOM BLENDS Mattress Encasement Offers 360° Coverage With A Secure 3-Sided Zipper, Safeguarding Against Bed Bugs, Dust Mites, Allergens, And Spills For A Cleaner And Healthier Sleep Environment.
Sizes To Fit Every Bed – Available In Single (91 X 191 Cm + 30 Cm), Small Double/4ft (122 X 191 Cm + 30 Cm), Double (137 X 191 Cm + 30 Cm), King (152 X 198 Cm + 30 Cm), And Super King (183 X 198 Cm + 30 Cm), Providing A Snug And Secure Fit For Standard Mattresses.
OEKO-TEX Certified Quality – Crafted From Safe, Tested Materials Free From Harmful Substances, Ensuring You And Your Family Sleep On Bedding You Can Trust.
Easy Installation & Care – The Zippered Closure Ensures Hassle-Free Installation, While The Machine-Washable Design Makes Maintenance Simple And Convenient.
Bed Bug & Allergen Barrier – Lab-Certified To Protect Against Bed Bugs, Dust Mites, Pet Dander, And Household Allergens, Making It Ideal For Allergy Sufferers And Families With Pets.
Available In Multiple Sizes – Choose From Single, Small Double (4ft), Double, King, And Super King To Find The Perfect Fit For Your Mattress, With An Additional 30cm Depth For Added Versatility.
#TOP 5

Anti Bed Bug Mattress Protector

BLOOM BLENDS
Anti-Bug Mattress protector
White
Single
Anti Bed Bug Mattress Protector Cover
Anti Bed Bug Mattress Protector – 100% Waterproof & Breathable Cover with 3-Sided Zipper | Bed Bug & Dust Mite Proof | Total Encasement, Fits Single, Double, King, Super King | 30cm Deep (Single)
ftb score rating icon 9.4
FTB Score
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Features
100% Waterproof & Breathable Fabric – Featuring An Advanced Nanotech Fabric Membrane, This Protector Blocks Liquids And Stains While Allowing Airflow To Ensure Ultimate Comfort Throughout The Night.
Complete Mattress Protection – BLOOM BLENDS Mattress Encasement Offers 360° Coverage With A Secure 3-Sided Zipper, Safeguarding Against Bed Bugs, Dust Mites, Allergens, And Spills For A Cleaner And Healthier Sleep Environment.
Sizes To Fit Every Bed – Available In Single (91 X 191 Cm + 30 Cm), Small Double/4ft (122 X 191 Cm + 30 Cm), Double (137 X 191 Cm + 30 Cm), King (152 X 198 Cm + 30 Cm), And Super King (183 X 198 Cm + 30 Cm), Providing A Snug And Secure Fit For Standard Mattresses.
OEKO-TEX Certified Quality – Crafted From Safe, Tested Materials Free From Harmful Substances, Ensuring You And Your Family Sleep On Bedding You Can Trust.
Easy Installation & Care – The Zippered Closure Ensures Hassle-Free Installation, While The Machine-Washable Design Makes Maintenance Simple And Convenient.
Bed Bug & Allergen Barrier – Lab-Certified To Protect Against Bed Bugs, Dust Mites, Pet Dander, And Household Allergens, Making It Ideal For Allergy Sufferers And Families With Pets.
Available In Multiple Sizes – Choose From Single, Small Double (4ft), Double, King, And Super King To Find The Perfect Fit For Your Mattress, With An Additional 30cm Depth For Added Versatility.
#TOP 6

Dreamzie - Waterproof Mattress Encasement 180x200 x30 cm Super King Bed

Dreamzie
White
Dreamzie - Waterproof Mattress Encasement 180x200 x30 cm Super King Bed Cover
Dreamzie - Waterproof Mattress Encasement 180x200 x30 cm Super King Bed - Bed Bug Mattress Protector - Zipped Mattress Protector for Allergiques - Bi-Ome et Oeko-Tex
ftb score rating icon 9.2
FTB Score
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Features
Waterproof And Breathable: The Soft Yet Durable Fabric Features A Silent Waterproof TPU Membrane That Shields Against Spills, Sweat, And Stains. A Reliable Waterproof Mattress Protector That Doesn't Trap Heat Or Make Noise.
360° Zip-Up Protection: This Full Mattress Encasement Wraps Your Mattress On All Sides And Features A Secure Zip Closure To Completely Block Out Dust Mites, Bed Bugs, And Allergens. Ideal For Anyone Seeking A Bed Bug Mattress Protector Or A Mattress Cover With Zip.
Perfect Fit For Every Bed: Available In All UK Sizes — From Single Mattress Cover With Zip To Super King Mattress Protectors. Stretches Easily Over Standard And Deep Mattresses While Staying Snug.
Discreet Comfort, Easy Care: This Zipped Mattress Protector Fits Invisibly Under Your Sheets And Remains Noiseless All Night. Machine Washable And Durable For Long-Term Use — The Best Bed Bug Proof Mattress Cover For Peace Of Mind.
Anti-Allergy & Anti-Bed Bug Barrier: This Anti Allergy Mattress Protector Creates A Protective Shield Against Dust Mites, Pet Dander, And Bed Bugs. Perfect For Allergy Sufferers And Sensitive Sleepers.
#TOP 7

Bed Bugs Mattress Protector - Cot Bed Size 70x140cm

SafeNight
SafeNight PNT
White
Cot - 70 x 140
Bed Bugs Mattress Protector - Cot Bed Size 70x140cm Cover
Bed Bugs Mattress Protector – Cot Bed Size 70x140cm – Zipped Complete Cover - Blocks Bed Bugs and Dust Mites – Soft Waterproof Cotton Surface – Stretch-Fitted (9–18cm Depth)
ftb score rating icon 9.2
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Features
360° SECURE CLOSURE FOR TOTAL PEACE OF MIND – The Three-Sided Zip Opening Makes It Easy To Fit Over The Mattress, Even In A Cot. Once Closed, The Heavy-Duty Zip And Velcro Safety Tab Ensure A Tight Seal – Blocking Even The Smallest Intruders, And Helping Parents Sleep Soundly Too.
SAFE NIGHT PROTECTION FOR BABY MATTRESSES – This Full Mattress Encasement Provides A Safe, Chemical-Free Barrier Against Bed Bugs, Dust Mites, And Liquids. Lab-Tested And Baby-Friendly, It Features A Reinforced Zip And Anti-Intrusion Flap With Velcro To Fully Seal Your Baby's Mattress – Without The Need For Treatment, Sprays Or Pesticides.
GENTLE & BREATHABLE COTTON COMFORT – Made From Soft Cotton Terry, The Surface Is Quiet, Breathable, And Gentle On Delicate Skin. No Noisy Plastic Texture – Just A Calm, Cosy Layer Your Baby Won't Even Notice. Waterproof And Perfect For Managing Incontinence, Milk Leaks, Or Everyday Nursery Messes. Machine Washable At 60°C For Stress-Free Cleaning.
PERFECTLY SIZED FOR COT BED MATTRESSES – Designed For Standard UK Cot Bed Mattresses (70x140cm), This Stretch-Fitted Cover Adapts To Depths Between 9 And 18cm. The Elasticated Side Panels Provide A Snug, Wrinkle-Free Fit That Stays In Place All Night – No Slipping, No Bunching.
DURABLE DESIGN FOR EVERYDAY NURSERY USE – With Reinforced Seams And A Strong Zip, This Protector Is Made To Last Through Washes, Changes, And Night-Time Accidents. Unlike Flimsy Fitted Sheets, It Won't Tear Or Come Apart – Ideal For Daily Use In Your Baby's Cot Bed.
#TOP 8

BlissLo Waterproof Mattress Encasement Small Double Bed

BlissLo
BlissLo ME-01
White
BlissLo Waterproof Mattress Encasement Small Double Bed Cover
BlissLo Waterproof Mattress Encasement Small Double Bed - 4FT (120x190+30cm), Zippered Mattress Protector, Bed Bug & Dust Mite Proof Mattress Cover with Zip, Anti-Allergy Encasement Cover (White)
ftb score rating icon 9.1
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Features
Waterproof Protection That Keeps You Dry All Night: Say Goodbye To Wet, Uncomfortable Nights. BlissLo's Small Double Waterproof Mattress Protector Repels Moisture While Allowing Airflow. Whether You Call It A Waterproof Mattress Protector Small Double Or A Mattress Protector Small Double Bed, It Keeps Your Bed Cool, Fresh, And Completely Dry.
360° Encasement Blocks Bed Bugs & Allergens: BlissLo's Zipped Mattress Protector Delivers Full 360° Encasement—shielding All Six Sides Of Your Mattress. As A Small Double Bed Mattress Protector And 4 Ft Small Double Mattress Cover, It Defends Against Bed Bugs, Dust Mites, Bacteria, And Allergens For A Truly Encased Sleep Surface.
Zippered Cover With Micro-Zipper For Full Encasement: The Zippered Mattress Protector Features An Advanced Micro-Zipper Seal To Block Out Even The Tiniest Intruders. As A Mattress Encasement Small Double Or Zip Up Mattress Cover, It Combines Maximum Defense With Easy On/off Access.
Machine-Washable, Durable & Long-Lasting: BlissLo's Small Double Mattress Cover With Zip Is Fully Machine Washable And Built To Endure. Even After Repeated Washes, It Remains A Powerful Zipped Mattress Protector And Reliable Mattress Protector Small Double — Keeping Your Mattress Stain-Free And Protected For Years To Come.
Hypoallergenic & Anti-Allergy Cotton Fabric: Our 4 Ft Small Double Mattress Cover Is Crafted From Breathable, 100% Cotton—perfect For Sensitive Skin. With Built-In Anti–dust Mite And Anti–allergy Properties, This Mattress Protector Small Double Reduces Exposure To Triggers Like Pollen And Mites, Ensuring Irritation-Free, Restful Sleep.
#TOP 9

Beedsooth Waterproof Mattress Protector for Single Bed

Beedsooth
SW#BME2002
White-20 Height
Beedsooth Waterproof Mattress Protector for Single Bed Cover
Beedsooth Zippered Waterproof Mattress Encasement Single Bed (90x190x20cm) Premium Bed Bug Proof Mattress Protector Hypoallergenic Dust Mite Proof Anti Allergy Mattress Cover
ftb score rating icon 9.0
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The Beedsooth Mattress Protector offers complete protection for your single bed mattress. Its waterproof design safeguards against liquids, sweat, and stains, keeping your mattress in pristine condition. Made with high-quality cotton terry on the surface and a waterproof PU laminate underneath, it ensures a comfortable sleep experience. With dimensions suitable for mattresses up to 20 cm deep, it’s versatile for use at home, in holiday homes, or while camping. This protector is also ideal for children, pet owners, and those with allergies, enhancing overall sleep hygiene.

What We Like
Complete waterproof protection
Comfortable cotton terry surface
Machine washable for easy cleaning
Suitable for various users
Compatible with deeper mattresses
#TOP 10

House 22 Waterproof Mattress Encasement

House 22
HOUSE22Bedbug
White
Double
House 22 Waterproof Mattress Encasement Cover
House 22 Waterproof Mattress Encasement – Double (138x190+30 cm) | Breathable Zippered Mattress Cover | 360° Bed Bug & Spill Protection | Soft, Hypoallergenic Fit for Beds (Double)
ftb score rating icon 8.8
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Features
Zippered 360° Enclosure The Mattress Cover With Zip Wraps Around Your Double Mattress Completely With A Strong Zipper, Ensuring Full Enclosure And Protecting It From Spills, Dust, And Bed Bugs
Perfect Fit & Protection This Double Mattress Protector Offers A Snug Fit And 6-Sided Protection, Shielding Your Mattress From Daily Wear, Moisture, And Dirt To Keep Your Double Bed Fresh And Hygienic
Effortless Cleaning Double Waterproof Mattress Protector Is Machine Washable And Designed For Long-Term Use, With Durable Fabric That Stays Effective After Multiple Washes For Daily Protection
Breathable Waterproof Layer Waterproof Mattress Protector Double Keeps Your Bed Safe From Urine, Accidental Spills, Or Stains While Maintaining Airflow To Ensure A Cool And Breathable Sleep Surface
Bed Bug & Allergen Shield The Mattress Protector Double Bed Version Blocks Dust Mites, Pests, And Allergens With A Complete Barrier System That's Ideal For Allergy Sufferers And Families With Peta
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Editor's Notes

During our block mattress encasement research, we found 44 block mattress encasement products and shortlisted 10 quality products. We collected and analyzed 5,677 customer reviews through our big data system to write the block mattress encasements list. We found that most customers choose block mattress encasements with an average price of £20.00.

The block mattress encasements are available for purchase. We have researched hundreds of brands and picked the top brands of block mattress encasements, including SafeNight, Dreamzie, BLOOM BLENDS, BlissLo, Beedsooth.

Written by
Corey Phillips Avatar
Corey Phillips

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.