It is common for active babies to climb or roll out of beds, especially after 8 months. To ensure safety, ensure the mattress is at its lowest setting and consider using a crib with high, fixed rails. For babies who are already mobile or active, avoid soft bumpers or pillows that can be used as stepping stones, and prioritize a stable, enclosed sleep space. If your baby continues to climb, it may be time to transition to a floor-bed setup or a low-profile mattress on the floor with safety guards around the perimeter.