Guard Rail for Ikea Kura Bed

My son is 2 years old and he will be moving from crib to Kura bed.
We will place it upside down and it located in his room where only 1 side is open. We want a guard rail that can protect him from falling down. He moves around a lot while sleeping.

Can anyone recommend a guard rail that will work with Ikea Kura bed?


Thanks

I bought Kidco rail from amazon. It works very well on Ikea Kura and other platform beds. It was super easy to assemble and is easy to take in and out.