Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in price history and forecast - Mainstays 0
Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in

Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in

Brand:
Mainstays
Model Number:
0
UPC:
842310100328
EAN:
0842310100328
Walmart SKU:
191926980
Key Takeaway

Current $39.88 has remained steady for the past three weeks, closely tracking the 90-day average of $39.88. This consistency suggests buyers are getting the standard market rate.

Third-Party Seller Summary

No price history available for Third-Party Sellers

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$39.88
Lowest Price
$32.88
Most Recent Price
$39.88
Average Price
$39.49
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in since 2/12/2025. The most recent price update was on Nov 14, 2026.

Price Range: Over the past 90 days, the price has ranged from $32.88 (lowest on 2/12/2025) to $39.88 (highest on 9/25/2025). The average price during this period is $39.49.

Current Trend: Walmart.com prices have ranged from $39.88 (Nov 14) to $39.88 (Nov 14) over the past 90 days. Current price is close to the 90-day average of $39.88.

Customer Insights: Rated 4.5/5 from 2304 reviews.

Customer Reviews

2304 reviews

Customer Reviews

4.5
Based on 2304 reviews
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1765
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Showing 10 of 2304 reviews

Mainstays extra thick waterproof mattress pad

Anonymous September 14, 2026

These are great!!! They're thick and most importantly is cotton. I've used these for YEARS and they are durable. They protect your mattress from everything. My mattresses are about two years old and the first thing I did was purchase this item for a queen bed. I purchased the extra thick pad and my mattresses have no stains. They look like the day I purchased them. I've spelt water, juice and my mattresses have not been affected thanks to these pads. I've bought 14 so far my two homes. A total of 7 beds, I bought 14 because I always like to have double of everything. I recommend them 100%.

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Waterproof protection for my mattress

Colleenh July 8, 2023

The quality was much better than I expected . It is waterproof and protects the expensive mattress underneath. It has a soft pillow top and fits the bed with elastic all around as opposed to encased in a zippered closure which is much harder to put on a king size bed. Now I do not have to worry when my husband or kiddies spill a drink on the bed! I am very happy with my purchase!

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Karen November 2, 2024

This is the best mattress protector I've ever owned. i need to always have one because i rescue animals, and when they get old and sick, well...they have accidents. This cover is so soft and plush I have even slept directly on it when just too tired to completely apply new sheets late at night (after the above described accident). I own two now because they're that good. The old ones are thin and plastic like AND they leak! Get this, you won't regret it. Fits my thick King bed just fine.

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Nice thin mattress pad

Bellatoo July 19, 2023

We were looking for a basic king mattress pad to go over our mattress and 4 inch topper at a total of 15 inches. This doesn't fit well even though in the description it says it will fit up to 18 inches. I bought this one since I thought it would add a little padding to our 4 inch firm memory foam topper to ease our back pain but we will see if it helps but if you're looking for a soft plush mattress pad, I don't think this is it. But it is a nice mattress pad. Just not deep pocket enough for us.

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Great value. But not extra thick.

Laura January 2, 2025

It's not extra thick but thick like most mattress pads. Based on negative reviews I took a glass of water poured it on the pad. Then waited. I didn't see leak through. So hoping it stays this way. It fit the mattress perfectly. Easy to put on. So far so good! Great value for the quality. It's just not extra thick as advertised.

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it does shrink

Gramma September 14, 2021

I bought this because it had a layer that keeps anything spilled on it from soaking into the mattress. It does that very well. Unfortunately, my dog for mad at me and urinated a huge puddle on my bed. The urine did not go through the pad...my mattress still looks like new. I would have given it 5 stars but the pad shrunk after being washed in cold water and dried on a low heat. It was a struggle to get the pad back on my mattress.

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Quality Waterproof cover

Kathleen December 7, 2024

Sometimes my grandson is in my bed and of course, some things can happen like spills or maybe he’s young. He might pee to bed. So waterproof was my main reason for buying this, but it’s surpassed my idea of how good it would really be. I washed it twice now it’s held up nicely in a normal wash. I even put it in the dryer. I still have not had a problem. It looks nice. It’s nice on the bed. It’s comfortable doesn’t feel like it’s waterproof. It feels nice highly recommend us.

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NOT WATERPROOF AT ALL

Embrown97 August 27, 2023

Pretty thick and nice if you are not concerned about it being water proof or even water resistant. Daughter threw up on it the first time we used it and it soaked straight through like it was nothing more than a blanket. I washed it as instructed before using it. Had to clean the mattress, but you know how it goes and you just can’t clean that deep. Mattress will have to be replaced at some point.

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Best thing that's ever happened to me

Jazzmin July 15, 2023

Lol.. tmi but I bought this specifically because I hate laying in the "wet spot" or having to scrub and dry my bed after or having to dry my bed after my daughter sippy cup drips everywhere. This is a great alternative if your child wets the bed and so on. I do already have a pillow top mattress which is comfy but I can tell the difference in my bed since I've added this cover to it. Don't think that this is goin to be thick like the memory foam covers they have because it's not but I can definitely tell the difference in my bed. It also stays in the bed !!! I literally hate having to keep having to put my sheets on my bed because they keep sliding or what ever so I use jersey sheets now but the mattress cover literally doesn't move and it doesn't make noise like the plastic bed covers (annoying)

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Billy December 22, 2024

I bought this mattress pad. Put on my brand spanking new mattress. Adjustable maddress, which costs $700 new. 2 days after it being on my bed. I've had a little leakage problem. So I haven't been feeling very good lately And it. Soaked all the way through the pad and run my brand new mattress.so NO IT'S NOT WATERPROOF

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Price History

Historical price data graph for Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

23 records

Walmart.com prices have ranged from $39.88 (Nov 14) to $39.88 (Nov 14) over the past 90 days. Current price is close to the 90-day average of $39.88.

Walmart.com price history for Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in showing recent price changes over the past 90 days
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No third-party seller price history available for this product in the past 90 days.