1. Introduction
Thank you for choosing the SOFTSEA Twin to King Extendable Daybed with Trundle. This manual provides essential information for the safe assembly, operation, and maintenance of your new daybed. Please read these instructions thoroughly before beginning assembly and retain them for future reference.
Product Overview
This daybed is designed to offer versatile sleeping arrangements, functioning as a twin-sized bed that can be extended to a king size. It also includes a pull-out trundle bed for additional sleeping space. Constructed from plywood, MDF, and pinewood, it offers stability and durability.
Safety Information
Important Safety Warnings:
- Do not exceed the weight capacity of 275 lbs for the main bed and 175 lbs for the trundle bed.
- Be cautious of sharp edges during assembly and use.
- Always follow assembly instructions carefully to prevent instability or collapse.
- Ensure all connections are securely tightened before use.
2. Setup Instructions
Unpacking
Carefully remove all components from the packaging. Lay them out on a clean, soft surface (like a carpet) to prevent scratches. Verify that all parts and hardware listed in the included parts list are present. If any parts are missing or damaged, do not proceed with assembly and contact customer support.
Assembly
Assembly is required for this daybed. It is recommended that two adults perform the assembly. Please refer to the detailed assembly instructions provided in the product packaging for step-by-step guidance. Ensure all bolts and screws are tightened firmly but do not overtighten.

Image: The main daybed frame shown in its extended configuration, without mattresses, highlighting the slat support system.

Image: The trundle bed frame, detached from the main daybed, showcasing its wooden slats and wheels for mobility.

Image: A detailed view of the trundle bed's wheels and the support structure, indicating how it slides in and out.
3. Operating Instructions
Extending the Daybed (Twin to King)
- Ensure the main bed is clear of bedding and mattresses.
- Gently pull the extendable section of the daybed outwards from the main frame. The mechanism is designed to slide smoothly.
- Continue pulling until the frame is fully extended, creating a king-sized sleeping surface.
- Place two twin mattresses side-by-side to form a king-sized sleeping area.

Image: The daybed configured as a twin bed, with the trundle neatly stored beneath the main frame.

Image: The daybed fully extended to a king-size configuration, with the trundle bed also pulled out, demonstrating its maximum sleeping capacity.
Using the Trundle Bed
- Locate the handle or cutout on the front panel of the trundle bed.
- Gently pull the trundle bed outwards from under the main daybed. The wheels allow for easy movement.
- To store, push the trundle bed back into its position under the main daybed until it is fully recessed.
Mattress Recommendations: For optimal use, the upper bed accommodates a mattress thickness of up to 8 inches, and the trundle bed accommodates a mattress thickness of up to 6 inches. Thicker mattresses may hinder the smooth operation of the trundle.
4. Maintenance
Cleaning
Wipe the daybed frame with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these can damage the finish. Dry immediately with a clean cloth.
General Care
- Periodically check all bolts and screws to ensure they remain tight. Retighten as necessary to maintain stability.
- Avoid dragging the daybed when moving it; lift it to prevent damage to the frame and flooring.
- Protect the surface from excessive moisture and direct sunlight to prevent warping or fading.
5. Troubleshooting
Trundle not sliding smoothly
- Check for any obstructions (e.g., bedding, debris) under the main bed or in the trundle's path.
- Ensure the trundle mattress does not exceed the recommended 6-inch thickness.
- Verify that the trundle wheels are clean and free of hair or dirt.
Daybed feels unstable or wobbly
- Recheck all assembly bolts and screws. Tighten any loose connections.
- Ensure the daybed is placed on a flat, level surface.
6. Specifications

Image: A technical drawing illustrating the precise dimensions of the daybed and its trundle component in inches.
| Feature | Detail |
|---|---|
| Product Type | Daybed |
| Size | Twin (extendable to King) with Trundle |
| Overall Product Dimension (Twin) | 76.3"L x 41.8"W x 23.2"H |
| Overall Product Dimension (King Extended) | 76.3"L x 79.2"W x 23.2"H |
| Trundle Size | 70.5"L x 39.3"W |
| Material | Plywood, MDF, Pinewood |
| Weight Capacity (Main Bed) | 275 LBS |
| Weight Capacity (Trundle Bed) | 175 LBS |
| Recommended Mattress Thickness (Upper Bed) | 8 inches |
| Recommended Mattress Thickness (Trundle Bed) | 6 inches |
| Number of Slats (Upper Bed) | 19 |
| Number of Slats (Trundle Bed) | 8 |
| Box Spring Required | No |
| Assembly Required | Yes |
| Color | Grey |
7. Warranty Information
This SOFTSEA daybed comes with a one-year product warranty from the date of purchase. This warranty covers manufacturing defects. Please retain your proof of purchase for any warranty claims. The warranty does not cover damage due to improper assembly, misuse, accidents, or normal wear and tear.
8. Customer Support
For assistance with assembly, missing parts, or any other inquiries regarding your SOFTSEA daybed, please contact the retailer or visit the official SOFTSEA store page for support options. You can often find contact information on your purchase receipt or the product's online listing.
Visit the SOFTSEA Store for more information.