/ Safety Warnings ™ 1.Follow the information on the warnings appearing on the upper bunk end structure and on the carton . Do not remove warning label from bed. 2.Always use the recommended size mattress or/and mattress support to help prevent the likelihood of entrapment or falls. 3.Surface of mattress must be at least 5 in. below the upper edge of guardrails . 4.Do not allow children less than 6 years of age to use the upper bunk. 5.