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A bunk bed is a top heavy bed, this means with the weight at the top a pendulum effect could occur if the user either moves around to much or the floor is slightly unlevel.

This is further enhanced if the floor is wooden, we have explained this possible issue within the care leaflet and the assembly instructions.

It is not a matter that the product is faulty but a characteristic of such a top heavy product. It is therefore instructed by the Bunk Bed entrapment regulations that a customer be supplied with wall brackets to attach that will prevent this effect. It is no different than a bookcase with all the heavy books on the top shelf.

So, to resolve this problem simply attach the brackets as advised within the assembly instructions. Preferably attach to the wall but you can try attaching to the skirting. This prevents movement that will prevent this pendulum effect.