Introduction
This manual provides instructions for the assembly, use, and maintenance of your DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit (M5789). This kit is designed to convert compatible DaVinci cribs into a full-size bed or mini cribs into a twin bed, extending the usability of your furniture.
Safety Information
WARNING: Please read all instructions before assembly and use. Failure to follow these warnings and instructions could result in serious injury or death.
- Always ensure all bolts and fasteners are securely tightened before use. Periodically check and re-tighten as necessary.
- Do not use this conversion kit if any parts are missing, damaged, or broken. Contact DaVinci for replacement parts.
- This kit is intended for converting specific DaVinci, Babyletto, Babymod, Carter's by DaVinci, and Million Dollar Baby Classic Cribs. Verify compatibility with your crib model before assembly.
- A mattress and box spring (or suitable slat support) are required and sold separately. Do not use a mattress alone without proper support, as it may fall through.
- Maximum weight recommendation for the converted bed is 500 pounds.
- Keep small parts away from children during assembly.
Package Contents
Verify that all components are present before beginning assembly. If any parts are missing or damaged, do not proceed with assembly and contact customer support.
- 2 x Wooden Conversion Rails
- 2 x Metal Brackets
- Screws and Fasteners (various sizes)

Image: The two wooden conversion rails included in the kit.
Setup and Assembly Instructions
This conversion kit allows you to transform your DaVinci full-size crib into a full-size bed or your mini crib into a twin bed. The process involves disassembling parts of your existing crib and reassembling them with these conversion rails.

Image: Visual guide illustrating crib conversion options.
Tools Required:
- Screwdriver (Phillips head recommended)
- Allen Wrench (often included with crib, or standard size)
Step-by-Step Guide:
- Prepare the Crib: Carefully disassemble the front and back panels of your crib. Retain all hardware (bolts, nuts, washers) from your crib, as some may be reused.
- Identify Headboard and Footboard: The original crib end panels will serve as the headboard and footboard for your new bed. Ensure they are oriented correctly. Some crib designs may require rotating the corner posts for proper hole alignment.
- Attach Conversion Rails:
- Align the metal brackets of the conversion rails with the pre-drilled holes on the headboard and footboard posts.
- Secure the rails to the headboard and footboard using the provided screws and fasteners. Ensure a snug and secure fit. Do not overtighten.
- Install Mattress Support: This kit does not include mattress slats. You will need to purchase a compatible box spring or sturdy wooden slats separately to support your mattress. Place the box spring/slats onto the ledges of the conversion rails.
- Place Mattress: Once the support is in place, position your twin or full-size mattress on top.
- Final Check: Verify that all connections are tight and the bed frame is stable. Gently test the bed's stability before use.

Image: Example of a converted bed with the rails installed, showing overall dimensions.
Maintenance
Regular maintenance ensures the longevity and safety of your converted bed.
- Cleaning: Wipe surfaces with a damp cloth and mild soap. Avoid abrasive cleaners or harsh chemicals that may damage the finish.
- Fastener Check: Periodically check all bolts and screws to ensure they remain tight. Re-tighten as needed to maintain structural integrity.
- Inspection: Regularly inspect the wooden rails and crib posts for any signs of wear, damage, or splintering. Discontinue use if significant damage is found and contact customer support.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bed feels unstable or shaky. | Loose fasteners. | Check and tighten all bolts and screws connecting the rails to the headboard and footboard. |
| Mattress/box spring falls through. | No adequate support (slats/plywood) or incorrect size. | Ensure a box spring or sturdy wooden slats are installed on the rail ledges. This kit does not include mattress support slats. Verify mattress/box spring size matches the converted bed size (twin or full). |
| Rails do not align with crib posts. | Incorrect crib model or incorrect orientation of crib posts. | Confirm your crib model is compatible with the M5789 kit. Try rotating the crib end panels (headboard/footboard) to align the holes. |
| Missing parts. | Packaging error. | Do not proceed with assembly. Contact DaVinci customer support for replacement parts. |
Specifications
- Model Number: M5789W
- Material: New Zealand Pine Wood
- Finish: Non-toxic multi-step painting process, lead and phthalate safe
- Color: White (as per product variant)
- Product Dimensions: 77"L x 2"W x 5"H (each rail)
- Item Weight: 14.5 Pounds
- Maximum Weight Recommendation: 500 Pounds
- Compatibility: Select Babyletto, Babymod, Carter's by DaVinci, DaVinci, and Million Dollar Baby Classic Cribs.

Image: Detailed dimensions of a single conversion rail.
Warranty and Support
DaVinci products are designed with quality and safety in mind. For specific warranty information, please refer to the documentation provided with your original crib or visit the official DaVinci website. For assistance with missing parts, assembly questions, or any other support needs, please contact DaVinci customer service.
DaVinci Customer Service: Visit DaVinci Support Page







