BabyDan Folding Bedrailis avery compact folding bed guard/travel safety bed rail made of lightweight steel and covered in nylon. Simply unfold the rail and secure it under the mattress to make a bed a safer environment. It can be used both for slatted and solid bases, and is suitable for all beds apart from cribs and upper bunk beds. Can be folded down small and fitted into travel bag so it's the ideal travel companion.