Step into elevated comfort with this twin bunk bed, crafted from Metal, supporting up to 300 lbs, measuring 78"" x 41.5"" x 64.5"", accommodating a mattress of 3""-4"", equipped with safety guardrails for secure sleeping The no-box-spring-needed design simplifies setup and saves on additional costs Assembly is straightforward with labeled parts and clear step-by-step instructions.