Ensure sweet dreams and a restful night's sleep for your little one with the Fisher-Price Little Naps Bed Rail by Dream On Me . This thoughtfully designed bed rail ensures your child's safety while adding a touch of convenience to your daily routine. Certified by the American Testing Society, it meets stringent safety standards, and the swing-down feature allows for easy access when getting in and out of bed or changing sheets. The Little Naps Bed Rail requires no tools for assembly and the adjustable anchoring strap securely fastens the bed rail to the bed, accommodating various bed sizes, including twin, full, queen, and king. Plus, caring for it is easy – simply wipe it down with a damp cloth. Product dimensions are 34.6” L x 12.4” W x 19.7” H. This product is suitable for both thin (4-5”) foam mattresses and thick (10-11”) spring mattresses, and is designed for children aged 2-5 years.