Help prevent nighttime accidents with this Safety 1st Top-of-Mattress bed rail. The top-of-mattress design removes the potential for dangerous gaps, and the SecureTech indicator lets you see whether everything is locked in position. This Safety 1st Top-of-Mattress bed rail attaches to most twin, full or queen-sized beds and requires no tools, making set-up fast.
This bed rail fits twin, full, and queen-size mattresses.
Eliminates potentially dangerous gaps between the bed and bed rail.
Allows you to know that everything is locked in the proper position.
A:AnswerHello! This bed rail is for suitable for use with mattresses that are a minimum of 4 inches thick to a maximum of 10 inches thick. That being said, the product is only designed to work if the mattress is flat, and is not able to be customized if the mattress is partly inclined.