Mainstays Extra Thick Waterproof Mattress Pad, King, 76 in x 80 in
- Brand:
- Mainstays
- Model Number:
- 0
- UPC:
- 842310100328
- EAN:
- 0842310100328
- Walmart SKU:
- 191926980
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.
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$39.88 | |
|
Lowest Price
|
$32.88 | |
|
Most Recent Price
|
$39.88 |
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 15, 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 $39.50.
Current Trend: Walmart.com prices have ranged from $39.88 (Nov 15) to $39.88 (Nov 15) over the past 90 days. Current price is close to the 90-day average of $39.88.
Customer Insights: Rated 4.5/5 from 2306 reviews.
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%.
We just purchased a new bed so we wanted to protect the mattress with a waterproof cover, with the pets or granddaughter anything can happen, it's nice to be able to pull the protector and throw it in the washer and clean it up. The sheet were wonderful so soft and comfortable and with the type of fabric and warm when you jump into bed in Winter. I definitely will buy more.
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.
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.
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
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.
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.
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.
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)
This protector is awesome. We have another brand name that is thinner, but I discovered that it offers minimal protection and stuffed leaked thru to the mattress. This protector does not let anything leak through it so it actually protects your mattress!!
Detailed price history for the past 90 days
Walmart.com prices have ranged from $39.88 (Nov 15) to $39.88 (Nov 15) over the past 90 days. Current price is close to the 90-day average of $39.88.
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