We have a lower bed but have one side against the wall & use a “cuggl pink bed rail” as she’s an active sleeper x
We took the side off the cot and bought a bed guard. He can still climb out as there’s a gap but he sleeps fine. It was an adjustment but glad I did it as it’s closer to a normal single bed x
We’re already in a toddler bed and have been for about 4 months now. It’s worked really well for us x
we have a floor bed and it works great for us x
I moved my boy into a floor bed a few months ago and it's the best thing ever x