1. Introduction
Thank you for choosing the HITHOS King Bed Frame. This upholstered platform bed frame is designed to provide a comfortable and stylish foundation for your mattress, featuring a modern adjustable headboard and sturdy wooden slat support. This manual provides essential information for assembly, proper use, and maintenance to ensure the longevity and safety of your bed frame.

Image 1.1: Front view of the HITHOS King Bed Frame with mattress and bedding.
2. Safety Information
Please read and understand all safety warnings and instructions before assembly and use. Failure to follow these instructions may result in injury or damage to the product.
- Always follow the assembly instructions carefully to avoid injury.
- Be cautious of sharp edges when handling the bed frame components.
- Do not exceed the maximum weight capacity of 1000 pounds for this King bed frame. This capacity includes the mattress and occupants.
- Ensure all bolts and screws are securely tightened before use and periodically check them for tightness.
- Keep small parts away from children during assembly to prevent choking hazards.
- Do not stand or jump on the bed frame.
3. Package Contents
Verify that all components are present before beginning assembly. The bed frame components and hardware are conveniently packed within the zippered compartment behind the headboard.
- Headboard (with integrated storage for parts)
- Side Rails
- Footboard
- Wooden Slats
- Center Support Beam(s) and Legs
- Assembly Hardware (bolts, washers, nuts, Allen wrench)
4. Specifications
| Feature | Description |
|---|---|
| Brand | HITHOS |
| Model Number | US379 |
| Size | King |
| Color | Black |
| Product Dimensions (L x W x H) | 85.2" x 78" x 9.8" (Frame Height) |
| Adjustable Headboard Height | 42.9" or 45.3" |
| Weight Capacity | 1000 lbs (including mattress and occupants) |
| Mattress Recommendation | 8-13 inches thickness |
| Box Spring Required | No |
| Assembly Required | Yes |

Image 4.1: Key dimensions and weight capacity of the bed frame.
5. Setup and Assembly Instructions
The HITHOS King Bed Frame is designed for easy assembly. While it can be assembled by one person, having two people is recommended, especially for handling heavier components. Please refer to the detailed step-by-step instructions included in your product packaging for precise assembly guidance.
5.1 Before You Begin
- Clear a spacious area for assembly.
- Unpack all components and lay them out on a soft, clean surface to prevent scratches.
- Locate the hardware and tools, typically stored in a zippered compartment behind the headboard.
- Familiarize yourself with all parts and hardware by comparing them to the parts list in your manual.
5.2 Assembly Tips
- It is advisable to open the box and remove some parts before moving the entire package, as it can be quite heavy.
- Assembly typically takes approximately two hours for one person.
- Do not fully tighten all bolts until the entire frame is assembled and aligned. Once aligned, tighten all connections securely.

Image 5.1: Detail of the wooden slat support system.

Image 5.2: Side view illustrating the bed frame structure and legs.
6. Operating Instructions (Usage)
Once assembled, the HITHOS King Bed Frame is ready for use. It is designed to accommodate various mattress types without the need for a box spring.
6.1 Mattress Placement
Place your mattress directly onto the wooden slats. The bed frame is compatible with spring, memory foam, latex, or hybrid mattresses. A mattress thickness of 8-13 inches is recommended for optimal fit with the adjustable headboard.

Image 6.1: Recommended mattress thickness range (8-12 inches shown).
6.2 Adjustable Headboard
The headboard can be adjusted to two different heights: 42.9 inches or 45.3 inches. This feature allows you to customize the headboard height to best suit your mattress thickness and aesthetic preference. Refer to your assembly manual for specific instructions on adjusting the headboard height.

Image 6.2: Illustration of the adjustable headboard heights.
7. Maintenance
Regular maintenance will help preserve the appearance and structural integrity of your HITHOS King Bed Frame.
- Cleaning: For the upholstered parts, spot clean with a mild detergent and a damp cloth. Avoid harsh chemicals. For the frame, wipe with a soft, dry cloth.
- Tightness Check: Periodically (e.g., every 3-6 months), check all bolts and screws to ensure they remain tight. Re-tighten if necessary to maintain stability and prevent noise.
- Avoid Excessive Moisture: Keep the bed frame in a dry environment to prevent damage to the wood and upholstery.
- Protect from Sunlight: Prolonged exposure to direct sunlight may cause fading of the upholstery fabric.
8. Troubleshooting
If you encounter any issues with your bed frame, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Bed frame is wobbly or unstable. | Loose connections or improperly assembled parts. | Check all bolts and screws and tighten them securely. Ensure all slats are properly seated in their supports. |
| Squeaking or noise from the frame. | Loose connections, friction between parts, or improperly placed slats. | Tighten all hardware. Ensure slats are evenly spaced and fully inserted. If noise persists, apply a small amount of lubricant (e.g., silicone spray) to contact points between metal parts or where slats meet the frame. |
| Headboard does not adjust properly. | Incorrect assembly of headboard support brackets. | Review the headboard assembly steps in your manual to ensure brackets are installed correctly for adjustment. |
| Missing parts or damaged components upon arrival. | Shipping damage or packing error. | Do not proceed with assembly. Contact HITHOS customer support immediately for assistance. |
9. Warranty and Support
For information regarding warranty coverage, claims, or additional product support, please contact HITHOS customer service. Keep your purchase receipt and model number (US379) handy when contacting support.
You can typically find contact information on the HITHOS official website or through the retailer where you purchased the product.