This deal has expired. Everything below is a historical record of what this product cost on 19 August 2026. It is not a current offer and the price will have changed.

Premium Waterproof Zippered Mattress Protector Twin XL Size, 8" Depth

Damn Good Score: 86 out of 100
Price then: $17.09 on 19 August 2026
Average then: $31.29
Drop: 45% below average
Category: Home
Rank band: Top 250
Sales rank: #140

Why it scored 86. 45% below its own recent average, a discount this deep is rare for this product, and it sells constantly at full price.

Usually sits around $31. Not today.

This score was assigned on 19 August 2026 and has never been revised. That is deliberate — a scoring system nobody can check afterwards isn't worth a thing. How the Damn Good Score works.

See this product on Amazon — at whatever it costs today, which is not what it cost then.