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UltraBlock Ultra Plush Premium Waterproof Mattress Protector (California King) – Ultra Soft, Breathable, Vinyl Free, Noiseless Mattress Cover, Fitted Style with Deep Pockets (15-18")

Based on 11,408 reviews
Condition: New
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$44.47
Holiday Deal · 11% off was $49.84

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At a glance

Condition
New
Material
Cotton
Size
California King
Model
COMINHKR049561
Dimensions
14 x 5 x 10 in
Weight
3.03 lb
Closure Type
Pull On

Features 5

  • WATERPROOF - Sleep with peace of mind knowing your mattress pad is designed with water resistant fabric to be totally protected from spills and accidents.
  • SAFE SLEEPING - No need to sneeze while you snooze with this waterproof mattress protector. Keep unwanted guests out and comfort in with this safe, thick yet breathable fabric.
  • DEEP POCKETS - Don't spend savings on a topper that doesn't fit. No matter the size, the 18" pockets on our California king mattress cover will have you covered.
  • TOP TIER TECH - This waterproof mattress pad is designed with you in mind. The topper stays light and breathable, while the cotton terry/smooth plush top wicks away moisture.

Specs 12

Brand UltraBlock
Size California King
Fabric Type Cotton
Closure Type Pull On
Product Care Instructions Machine Wash
Water Resistance Level Waterproof
Material Cotton
Product Dimensions 14 x 5 x 10 inches

Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Water resistance
Material Type: Cotton Size: Queen
It was water resistant and easily went over mattresses
Reviewed in the United States on August 26, 2022 by Hillary Sherman

Soft top, and not hot to sleep on
Material Type: Cotton Size: King
Not sure about the water resistance, as there has not been any accidents, but the top is very soft. I have noticed in the past that the cover makes sleeping hot, but I have not noticed that with this one.
Reviewed in the United States on August 2, 2022 by Patti D.

GREAT PROTECTION, BUT A LITTLE LARGE FOR OUR CALIFORNIA KING MATTRESS
Material Type: Cotton Size: California King
We still like this product, though it's a bit larger than we thought it would be for our California King mattress. Perhaps it was made so that you could fit the box springs in it, too. I don't know. We just ticked the excess under the mattress and it works fine.
Reviewed in the United States on July 13, 2022 by L. Washburn

Better than anything else!
Material Type: Cotton Size: King
I have had this mattress protector for about a year. It's quiet, comfortable and fits my king bed perfectly. I wouldn't say there's a temperature change in the bed and it's not cushiony....because it's a pad not a topper, but it absolutely does what it's supposed to do! Just yesterday my puppy had an accident, in the middle of the bed, while I was changing the sheets. I was in the other room so i don't know exactly when it happened, but I found the pee sitting in beads on top of the protector and it totally stayed there until I could get a towel. Nothing reached the mattress! I am ordering a second one so I can rotate them when I wash the sheets. I was going to run to Target to buy one off the shelf but I'm afraid it won't be as good as this one! So I'll wait the 2 days to ship it and know I'm getting what I want! ... show more
Reviewed in the United States on June 1, 2022 by EMorgan

Super soft and full coverage
Material Type: Cotton Size: California King
This mattress protector is so soft and comfortable to sleep on. It is also ver quiet, meaning not scratchy like our old one. There is no pilling left behind on the mattress.
Reviewed in the United States on July 28, 2022 by Bridget Hilton

Fit mattress well.
Material Type: Cotton Size: King
Good quality material. Fit the mattress well. Would buy again.
Reviewed in the United States on August 10, 2022 by Handyman

Just purchased, how would anyone know how it preforms.
Material Type: Cotton Size: Split King
Unknown
Reviewed in the United States on August 10, 2022 by James Brandon

Fits perfect
Material Type: Cotton Size: King
Perfect fit for our new mattress!
Reviewed in the United States on August 9, 2022 by Andrea
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