[ No Box Spring Needed ]: The platform slats are designed to support a twin size mattress without the need for a box spring, saving you money and space. The metal slats support the mattresses not to slag and allow air passing freely beneath your bed, keeping your mattress fresher longer to increase the mattresses life. Recommended Mattress Thickness 6"-8"[ Sturdy Metal Day Bed ]: The twin day bed is made of high quality metal with superior craftsmanship for optimized strength and long-lasting durability. It's safe, strong and durability. This daybed can support up to is 250 lbs of trundle bed, 350 lbs of day bed[ 2 in 1 Sofa Bed ]: the pull-out trundle can accommodate a twin size mattress, providing a convenient and comfortable sleeping area for guests. The trundle can be easily tucked away when not in use, saving valuable floor space. Perfect metal frame with pull out trundle for teens kids adults for living room, bedroom, guest-room, or small apartment. The trundle is also great for sleepovers or when hosting multiple guests.[ Noise-Free ]: The crafted slat provides excellent mattress support, distributing weight evenly. Sturdy and stability metal slats offers reliable support and eliminates excess wobbling, guaranteeing a solid and sturdy structure, our triple bed provides a stable foundation for a comfortable night's sleep.[ Easy Assembly ]：This bunk bed includes tools and instructions. Two people suggested installing it. Just following the step-by-step manual, you will get a new bed with no hassle[ Product Dimensions ]: 77.72" X 41.73" X 40.35"