Mainstays Cooling Waterproof Fitted Mattress Protector, Twin
- Brand:
- Mainstays
- Model Number:
- MS4300777091-56
- UPC:
- 010482402568
- EAN:
- 0010482402568
- Walmart SKU:
- 2386273931
Price locked at $20.64 for 31 days, matching the 90-day average—indicating remarkable stability. Buyers shouldn't expect discounts soon.
| Price Type | Price | Date |
|---|---|---|
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Highest Price
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$20.64 | |
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Lowest Price
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$20.64 | |
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Most Recent Price
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$20.64 |
Tracking History: We have tracked Mainstays Cooling Waterproof Fitted Mattress Protector, Twin since 11/16/2025. The most recent price update was on Jun 4, 2026.
Price Range: Over the past 90 days, the price has ranged from $20.64 (lowest on 11/16/2025) to $20.64 (highest on 11/16/2025). The average price during this period is $20.64.
Current Trend: Walmart.com prices have ranged from $20.64 (Jun 4) to $20.64 (Jun 4) over the past 90 days. Current price is close to the 90-day average of $20.64.
Customer Insights: Rated 4.3/5 from 1928 reviews.
We had originally bought a more expensive protector that made our bed so hot and I would wake up drenched in sweat. This protector is cooling you can barely even tell it's on. Will have to see how well it protects the bed, we have a new baby and breastfeeding so that was the biggest concern. Fits our king bed easily.
I purchased this before for my Full size bed (back when the cooling ones were blue) and it's been a godsend for keeping my bed cool during hot summer nights living in the California desert. I just moved out of state to Missouri and with the hot humid summers, I re-purchased for my new King bed and it has been very nice. I love that it doesn't shift and that it fits my deep mattress. Would definitely recommend.
This mattress cover did its job and while not the best quality, was well worth its money. If you want something that will protect your mattress well and get a good value for your money, look no further. It did make some noise when moving around but not too much.
I really do sleep cooler with this on the bed. when you look at it, doesn't seem like you will but it is much cooler then my other mattress protector. good price. don't know how long it will hold up but the price is good and it's keeping me cooler so it's a win. perimenopause is a b!%23ch
This is wonderful for women going through “the change”. I have a grandbaby, there have been some leaks from the diaper overnight, and my mattress never got wet.
Fits awesomely over the mattress ! My kids are hot sleepers and this has helped tremendously with their sleep. Along with mine lol. Also saves the mattress from any accidents!! So saves money too.
I got the twin size and it fits and does everything it says; cool, waterproof, zipper is good and seemingly sturdy sewing. I've had it for a month so far so good!
Very nice mattress protector. We have learned to never go without one. Between spills and our toddlers being in our bed, it is a necessity. This protector fit well, was easy to put on, is labeled for top and bottom, and is thin. I am extremely happy with this protector.
This looked and felt like plastic. I only had to open the box the see if looked and felt like shower curtain material. It looked like it would crinkle every time I moved. Rather than going to all the trouble of unboxing it and putting it on my bed only to have to try and shove it back in the box ifni didn't like it, I chose to simply return it.
these are far from waterproof. daughter spilled water on the bed and it was soaked through to the brand new mattress. I figured buying a pricier item would mean better but obviously not.
Detailed price history for the past 90 days
Walmart.com prices have ranged from $20.64 (Jun 4) to $20.64 (Jun 4) over the past 90 days. Current price is close to the 90-day average of $20.64.
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