Is this pad actually waterproof?

Yes. At Home lists it as a waterproof polyester pad, so it is designed to block spills from reaching the mattress. It is a barrier layer, not a thick quilted pad.

Will it fit a standard Twin XL mattress?

It is sized for Twin XL, listed at 39 by 80 inches, which matches the standard Twin XL mattress. Check your mattress depth, since a very deep mattress can stretch a fitted pad.

Not much. It is a thin polyester waterproof layer, so expect protection rather than cushioning. Shoppers wanting softness usually add a mattress topper over it.

Is $19.99 a good price?

At $19.99 at At Home as of November 7, 2026, it is a low price for a waterproof Twin XL pad. Only one store lists it, so there is no broader price history to compare against.

Is it machine washable?

Polyester waterproof pads of this type are typically machine washable on a gentle cycle and line dried. Follow the care label on the pad, since heat can damage the waterproof backing.

Where is the At Home Essential Waterproof Pad Twin XL cheapest?

At At Home, for $19.99, as of our latest check.

At Home Essential Waterproof Pad Twin XL

Best price now

$19.99at At HomeObserved at 7:10 AM

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Our take on the At Home Essential Waterproof Pad Twin XL

A basic waterproof mattress pad from At Home in Twin XL size, made of polyester with a white, rectangular fitted design. It is a low-cost barrier layer meant to protect the mattress from spills and accidents rather than add cushioning. At $19.99 at At Home as of November 7, 2026, it is the only new price listed, so there is no recent range to compare it against.