1. Important Safety Information
Please read all instructions carefully before using your Sealy Heated Mattress Pad. Retain this manual for future reference.
- ETL Certified: This product is ETL certified, ensuring it meets recognized safety standards.
- Do not use with infants, children, incapacitated individuals, or persons insensitive to heat.
- Do not use with damaged cords or plugs. If the cord is damaged, it must be replaced by the manufacturer or a qualified service agent.
- Avoid pinching the heating wires. Do not use if the mattress pad is folded, bunched, or creased.
- Do not dry clean. Dry cleaning solvents may damage the insulation of the heating element.
- Always unplug the mattress pad from the power outlet before cleaning or storing.
- Do not use pins or other metallic objects with this product.
- Ensure the controller is not covered or placed under bedding during use to prevent overheating.
2. Product Overview
The Sealy Heated Mattress Pad provides customizable warmth and comfort. It features dual-zone heating for Queen and larger sizes, allowing independent temperature control for each side of the bed. The pad is designed with a soft, quilted fabric and includes safety features such as automatic shut-off and overheat protection.
Key Features:
- Dual Zone Heating: Independent temperature control for left and right sides (Queen and larger sizes).
- 9 Heat Settings: Customize your warmth level from 87°F to 115°F.
- 1-9 Hour Auto Shut-Off: Set a timer for automatic power off.
- ETL Certified: Ensures product safety and reliability.
- Soft, Quilted Fabric: Provides comfort and even heat distribution.
- Machine Washable: Easy to clean and maintain.
- Deep Pocket Design: Fits mattresses up to 17 inches deep.
3. Setup Instructions
Follow these steps to properly install your heated mattress pad:
- Unpack: Carefully remove the mattress pad from its packaging. Allow it to lie flat for a few minutes to remove any creases.
- Position: Place the heated mattress pad directly on your mattress, ensuring it lies flat without any folds or wrinkles. The connector for the control unit should be positioned at the foot of the bed.
- Secure: The mattress pad features an elastic deep pocket design. Stretch the elasticized skirt over the corners of your mattress to ensure a snug and secure fit.

Image: The deep elastic pockets ensure a secure fit on mattresses up to 17 inches.
- Connect Controller: Plug the controller cord into the connector located on the mattress pad. Ensure the connection is firm.
- Power Connection: Plug the power cord from the controller into a standard 120V AC electrical outlet. Do not use with extension cords or power strips.
- Cover: Place your fitted sheet and other bedding over the heated mattress pad.
4. Operating Instructions
Your Sealy Heated Mattress Pad is operated via a single control unit for Queen and larger sizes, allowing individual adjustment of two zones.
Controller Functions:

Image: Detailed view of the single control unit for the heated mattress pad.
- Power ON/OFF: Press the 'ON/OFF' button to turn the mattress pad on or off. The digital display will illuminate when on.
- Select Zone (Left/Right): For Queen and larger sizes, press the 'LEFT/RIGHT' button to toggle between controlling the left or right heating zone. The selected zone will be indicated on the display.
- Adjust Heat Level: Use the 'HEAT LEVEL' buttons (up/down arrows) to select your desired heat setting from 1 to 9. Setting 1 is the lowest, and 9 is the highest. The temperature range is approximately 87°F to 115°F.
- Set Auto-Off Timer: Use the 'AUTO-OFF HOURS' buttons (up/down arrows) to set the automatic shut-off timer from 1 to 9 hours. The pad will automatically turn off after the selected time.
- Memory Function: The controller retains the last used heat and timer settings for convenience upon next use.
Video: Sealy Electric Mattress Pad with One Controller
Video: This video demonstrates the features and operation of the Sealy Electric Mattress Pad, highlighting the single controller for dual-zone heating.
5. Care and Maintenance
Proper care ensures the longevity and performance of your heated mattress pad.
Washing Instructions:

Image: The heated mattress pad is machine washable for easy cleaning.
- Disconnect: Always unplug the power cord from the wall outlet and then detach the control unit(s) from the mattress pad before washing.
- Pre-soak (Optional): For best results, pre-soak the mattress pad for 15 minutes in cold water with a mild detergent.
- Machine Wash: Wash on a gentle or delicate cycle in a washing machine with water temperature below 30°C (86°F). Use a small amount of mild, non-bleach detergent.
- Rinse: Rinse thoroughly on a slow spin cycle.
- Drying: Line dry or tumble dry on a low heat setting. Ensure the mattress pad is completely dry before plugging it back in or storing. Do not use until it is completely dry.
CAUTION:
- DO NOT DRY CLEAN.
- DO NOT BLEACH.
- DO NOT IRON.
- DO NOT PLUG IN AND POWER UP YOUR HEATED PRODUCT WHILE DAMP.
6. Troubleshooting
If you experience issues with your heated mattress pad, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Mattress pad does not heat. | Not plugged in correctly; power outage; controller malfunction. | Ensure all cords are securely plugged into the pad, controller, and wall outlet. Check household circuit breaker. Try a different outlet. |
| Pad heats unevenly or only one side heats. | Zone selection incorrect; internal wiring issue. | For dual-zone models, ensure the correct zone (LEFT/RIGHT) is selected on the controller. If issue persists, contact customer support. |
| Controller display is off or flashing. | Overheat protection activated; loose connection. | Unplug the unit for 30 minutes, then plug back in. Ensure all connections are secure. If flashing persists, contact customer support. |
| Pad is too hot or not warm enough. | Heat setting too high/low. | Adjust the heat level using the 'HEAT LEVEL' buttons on the controller. Allow 15-30 minutes for the pad to reach the desired temperature. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Sealy |
| Model | B0CXDNH3XM |
| Size | Queen Size (60" x 80") |
| Fabric Type | Polyester |
| Heat Settings | 9 levels (87°F - 115°F) |
| Auto Shut-Off | 1-9 Hours |
| Control Type | Single controller for dual zones |
| Special Features | Deep Pocket, Quilted, Temperature Control, Washable |
| Safety Certification | ETL/FCC Certified |
| Product Dimensions | 79.92 x 59.84 x 17 inches |
| Item Weight | 7.21 pounds |

Image: Size dimensions for various mattress pads. This manual specifically covers the Queen size.
8. Warranty and Customer Support
For warranty information, technical support, or any questions regarding your Sealy Heated Mattress Pad, please refer to the product packaging or contact Sealy customer service directly. Contact details are typically provided with your purchase or can be found on the official Sealy website.





