Moonsea Quilted Waterproof Mattress Pad Twin XL
- Size: Twin XL
- Water Resistance Level: Waterproof
- Material Type: Microfiber
- Fabric Type: Microfiber
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Waterproof and fitted like a sheet, this protector is built to guard a twin XL mattress rather than change how it feels to sleep on.
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ASIN: B0836JV52SCategory: Mattress Pads
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Overview
This twin XL mattress pad protector is cut as a fitted, deep-pocket sheet with a waterproof TPU layer under quilted microfiber, sized 39 x 80 inches for dorm rooms, guest beds and anyone who wants spill protection without a crinkly plastic feel.
This is a protector, not a topper meant to change firmness or add cushioning; the diamond quilting keeps the thin fill from bunching rather than adding loft. The deep-pocket skirt stretches to fit mattresses up to about 16 inches thick, which matters more on a purchase like this than price, since a loose or tight fit is the usual complaint on fitted covers.
- 39 x 80 inch twin XL fit
- Waterproof TPU backing under microfiber
- Fitted skirt stretches to 16 inch deep mattresses
- Machine washable and dryer safe on low heat
Who it's for
Twin XL is the dorm and daybed length, so this suits college students, guest twin XL frames, and adjustable bases built to that size. It is not sized for a standard twin (39 x 75), full, queen or king mattress, which the brand sells as separate listings.
Pros and cons
- Waterproof TPU layer without a plastic feel
- Deep-pocket fit up to about 16 inches thick
- Machine washable, tumble dry on low
- Diamond quilting keeps the fill from shifting
- Adds little to no extra cushioning
- Sized for twin XL only, other sizes sold separately
- No stated stain or slip resistance beyond waterproofing
Performance notes
The waterproofing comes from a TPU film laminated under the microfiber face rather than a surface coating, which is how it stays soft instead of crinkly or hot to sleep on. The fitted skirt's elastic stretches to hold mattresses up to roughly 16 inches thick, so it should stay anchored through repeated washing rather than slipping off the corners the way flat pads can.
Specifications
| Brand | Moonsea |
|---|---|
| Dimensions & fit | |
| Size | Twin XL |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type | Microfiber |
| Fabric Type | Microfiber |
| Color | White |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Other details | |
| Water Resistance Level | Waterproof |
| Number of Items | 1 |
| Product Care Instructions | Machine Wash |
| Other Special Features of the Product | Water Proof |
Frequently asked questions
Will the Moonsea mattress pad fit a standard twin mattress?
No, this listing is cut for twin XL (39 x 80 inches); the brand sells a separate 39 x 75 inch twin version.
Does the Moonsea protector make the mattress feel warmer?
The listing does not claim a cooling or warming effect beyond standard microfiber breathability, so treat it as a waterproof layer first.
How should the Moonsea pad be cleaned?
It is machine washable and can be tumble dried on low heat; the maker advises against ironing or bleaching.