With a Hillsdale Furniture trundle bed, increasing sleeping options and availability while conserving space is easy. A Hillsdale twin trundle bed is a twin size bed that can pair with a Hillsdale pop-up trundle bed to create a king size bed for additional sleeping capacity. The Hillsdale Furniture trundle beds store underneath the twin beds when not in use to conserve valuable floor space. A Hillsdale twin bed with trundle is a great solution.