Safety 1ˢᵗ Top of Mattress Bed RailWhen your little one finally learns how to climb out of the crib, its time for a big kid bed. Ensure they sleep as safe in their new bed as in the crib. This patented bed rail rests securely on top of the mattress to eliminate gaps and prevent rolling or falling out of bed. Specifications Top of mattress design eliminates potentially dangerous gaps between bed and bed rail. Sets up in under 3 minutes without tools. SecureTech indicator lets parents