Introduction
This manual provides essential instructions for setting up, using, and maintaining your Sealy 12-Inch Hybrid Bed in a Box, Queen Onyx mattress. Designed to combine the support of fabric-encased coils with the comfort of memory foam, this mattress offers a rejuvenating sleep experience. Please read these instructions carefully before proceeding with setup.
Setup Instructions
Your Sealy Hybrid mattress is conveniently packaged as a ready-to-ship Mattress-in-a-Box. Follow these steps for a hassle-free setup:
- Move the Box: Carefully move the packaged mattress box to the desired room where it will be set up.
- Unbox the Mattress: Place the mattress box near your bed frame. Open the box and slide the compressed, rolled mattress out.
- Position and Unroll: Place the rolled mattress onto your bed frame or foundation. Carefully remove the outer plastic packaging. The mattress will begin to decompress and expand.
- Allow for Full Expansion: Allow your mattress 24-72 hours to fully expand. Warmer room temperatures can help memory foam expand faster. In colder temperatures, it may take longer. Avoid jumping, walking, or sleeping on the mattress during the initial decompression period to allow it to expand naturally.

Image: A visual guide showing the four steps for setting up the Sealy mattress: moving the box, unboxing, unrolling onto the base, and allowing it to expand for 24 hours.
Video: Official Sealy video demonstrating the unboxing and setup process for the 12-Inch Hybrid Bed in a Box mattress. This video visually guides users through moving, unboxing, unrolling, and allowing the mattress to expand.
Product Features and Design
The Sealy 12-Inch Hybrid mattress combines advanced materials for optimal comfort and support:
- Layers of Comfort: Features a top layer of adaptive foam that conforms to your body for customized softness, paired with an inner layer of responsive coils for cushioning support.
- DuraFlex Coil Edge: A reinforced coil border around the perimeter of the mattress enhances durability, provides a larger usable sleeping area, and offers a stable seating edge.
- Hybrid Design: This mattress integrates both premium memory foam and fabric-encased coils, offering the benefits of both technologies.

Image: A detailed view of the Sealy 12-inch hybrid mattress, highlighting the quilted top layer and the distinct side panel with the Sealy logo. This image illustrates the mattress's construction and aesthetic.
Usage and Compatibility
For optimal performance and longevity, Sealy mattresses require a solid, elevated surface. Ensure your bed base is compatible:
- Compatible Bases: Power Base, Flat Foundation, Platform Bed.
- Incompatible Bases: Traditional Box Spring, The Floor.

Image: A visual guide illustrating various bed base types and their compatibility with Sealy mattresses. It clearly marks Power Base, Flat Foundation, and Platform Bed as compatible, while Box Spring and The Floor are marked as incompatible.
Care and Maintenance
To ensure the longevity and performance of your Sealy mattress, follow these general care guidelines:
- Protect Your Mattress: Use a mattress protector to guard against spills, stains, and allergens.
- Rotate Regularly: Rotate your mattress every 3-6 months to promote even wear and extend its lifespan. This helps maintain consistent comfort and support.
- Clean Spills Immediately: Blot spills with a clean, dry cloth. Avoid saturating the mattress with liquids. Do not use harsh chemicals or dry cleaning fluids.
- Provide Adequate Support: Ensure your mattress is always placed on a compatible, sturdy, and supportive base as outlined in the "Usage and Compatibility" section.
- Avoid Bending or Folding: Do not bend or fold the mattress, as this can damage the internal components, especially the coils in a hybrid mattress.
Troubleshooting
If you encounter any issues with your Sealy mattress, consider the following:
- Incomplete Expansion: If the mattress has not fully expanded after 72 hours, ensure the room temperature is adequate (around 68-72°F or 20-22°C). Gently walking on the mattress for a few minutes can sometimes help release trapped air and encourage expansion.
- Unusual Odor: A new mattress may have a slight "new product" odor upon unboxing. This is normal and typically dissipates within a few days. Ensure good ventilation in the room.
- Comfort Concerns: Allow a break-in period of at least 30 nights for your body to adjust to the new mattress and for the materials to fully settle.
- Squeaks or Noises: If you hear noises, first check your bed frame or foundation, as these are often the source of squeaks, not the mattress itself. Ensure all frame connections are tight.
For persistent issues not resolved by these steps, please refer to the warranty information for support contact details.
Specifications
| Brand | Sealy |
| Model Number | F03-00126-QN0 |
| Size | Queen |
| Product Dimensions | 80"L x 60"W x 12"Th |
| Item Weight | 70 pounds |
| Fill Material | Memory Foam, Encased Coils |
| Cover Material | Polycotton |
| Special Feature | Breathable |
| Color | Onyx |

Image: A visual representation of the Sealy 12-inch Queen mattress with its dimensions clearly labeled: 80 inches in length, 60 inches in width, and 12 inches in thickness.
Warranty and Support
Your Sealy 12-Inch Hybrid Bed in a Box mattress is backed by a 10-Year Limited Warranty. This warranty covers manufacturing defects and ensures the quality of your mattress. For detailed information regarding warranty coverage, claims, or customer support, please refer to the documentation included with your product or visit the official Sealy website.
For additional assistance, you may also contact Amazon Customer Support for products purchased through Amazon.





