We just transitioned our toddler to a “big boy” bed.  One of the issues we had was he moves a lot at night and we were worried he would roll off.  We decided against rails initially but after one fall off of the bed we decided to get these & haven’t had any issues.  Putting together and instillation was easy and we now have a piece of mind.  We now travel with these when we stay at families and etc due to the compact / flat nature of these.  Def get these for your kids!