How to Wash Electric Mattress Pad | Care That Keeps It Safe

Most modern electric mattress pads have removable textile covers or detachable cords, which makes washing possible. But the wrong approach — submerging the control, using bleach, or hitting it with high heat — can ruin the wiring or create an electrical risk. Sunbeam’s official care guidelines cover heated bedding broadly, and the steps below follow those instructions closely. Before you do anything, check your specific model’s manual, because washability and drying limits vary.

Check Your Pad’s Construction First

Sunbeam’s guidance splits heated bedding into two groups, and the correct washing method depends on which one you own.

If your pad has a removable cover, disconnect it from the outlet, remove the cover, and wash only that fabric portion. If your pad has a detachable controller but no removable cover, you wash the entire textile pad after unplugging it — but the control itself never touches water.

Either way, examine the pad for loose threads, frayed cords, or exposed wiring before washing. If the electrical components look damaged, skip the wash and replace the pad instead.

The Washing Process That Follows the Rules

Start by unplugging the pad from the wall outlet, then detach the control cord from the pad connector. Never wash these pieces with the pad attached.

Sunbeam’s care page recommends presoaking heated bedding for 15 minutes in mild soap and cold water before washing. Then run the machine on the delicate or gentle cycle with cold water, again using mild detergent. Skip the bleach entirely, and do not dry clean the pad.

Key washing guidelines:

• Machine wash cold on the gentle/delicate cycle, or hand wash in cool water
• Use only mild detergent
• Rinse in fresh cold water and spin dry in the machine
• Do not use bleach or fabric softener
• Do not dry clean, wring, or iron the pad

Once washing finishes, gently shape the pad back to its original size while it’s still damp.

Drying Without Damaging the Wiring

The drying step is where most people accidentally ruin their pad. High heat melts or cracks the thin wiring inside the textile, so commercial dryers and laundromat machines are off the table.

Sunbeam’s manual is explicit here: do not use commercial dryers because they run too hot and can damage the wiring. Instead, tumble dry on the lowest heat setting or hang the pad to dry. Remove it while it is still slightly damp, then stretch it back to its original shape and let it finish air drying.

The most important rule comes last: do not plug the pad back in or reconnect the control until it is completely dry. Moisture inside the connector is an electrical hazard, not just a performance issue.

If your model has a removable cover, that fabric piece can go in the dryer on a gentle, cool cycle — the same temperature restriction applies, but without the wiring concern.

Common Mistakes That Shorten a Pad’s Life

Most failed mattress pads die from one of a few avoidable errors. Washing with the control attached or submerging the cord in water damages the electronics and creates a real safety risk. Bleach, dry cleaning, wringing, and ironing are all explicitly prohibited in Sunbeam’s care instructions because they break down the heating elements or the insulation around them.

Reconnecting the pad before it’s fully dry is the other big one — even if the outside feels dry, trapped moisture inside the connector can cause a short. When in doubt, give it an extra few hours of air drying.

Before you shop for a replacement, know what to look for in a washable model. Our tested roundup of the best electric mattress pads compares models with removable covers and detachable controls, which makes future cleaning far simpler.