I bought this in hopes that I would be able to use it until my son was a teenager. Only to find out that after 16 months, I’m needing to buy a new bed because there is no such thing as the toddler conversion kit for this bed. Unless you want to take the front off and leave the side bars, exposed and allow your toddler to roll out of bed, You might want to buy something new. 
Apparently, none of the guards are compatible for this bed either.