- Will it fit a twin XL mattress?
- No. The listed dimensions are 39 by 75 inches, which is a standard twin. A twin XL is 39 by 80 inches, so this pad will come up short.
- Is it really waterproof?
- Yes, it has a waterproof backing meant to keep spills and accidents off the mattress. Wash and dry it as the care label directs to keep that layer intact.
- Can it go in the washer and dryer?
- It is machine washable. Use a gentle cycle and low heat to protect the waterproof backing.
- Does it change how the mattress feels?
- It adds a thin padded layer, but the waterproof backing can make it sleep slightly warmer and may rustle a little under sheets.
- Is $77.99 a good price?
- That is the best new price across four stores as of November 7, 2026. Compare it with other waterproof twin pads, which often sell for less, before buying.
- Where is the Serta Waterproof Pad Twin Twin Twin XL cheapest?
- At Target, for $77.99, 17% under what the other stores charge, as of our latest check.
- Where can I buy the Serta Waterproof Pad Twin Twin Twin XL?
- 4 stores we checked sell it, including Target, The Home Depot, JCPenney, 1stopbedrooms.
