You've got it! A pop-up trundle does exactly what is says — pops up to create more space (or combine for a bigger bed). 1.A ...

All these daybeds with trundles pull out on wheels or casters for easy mobility. They also have sturdy, long-lasting wooden or metal frames. Be sure to check if the trundle can accommodate a twin ...

VERSATILE SPACE SAVING DESIGN: This daybed with pop up trundle provides ... SIMPLE ONE COLOR STYLE: The clean lined black finish of this twin bed with trundle bed under is versatile to match ...