MO Roll-out Trundle (+mattress)Build your own Mo Loft Bed and Save! The MO Roll Out Trundle Bed is a fantastic addition to the MO Loft Bed, offering a convenient and comfortable sleeping space for guests or siblings. This bunk bed accessory is specifically designed to fit underneath the MO Bottom Bed, making it an excellent space saving solution. The roll out design allows for easy access and storage when not in use. Features: Roll out design Fit underneath MO Bottom Bed Mattress