The instructions are shockingly unclear. We missed a parts installation and then couldn’t undo what we had done because the thread in the bolt had gone! Only inferior products would fail after one go. So disappointed. What’s worse is I bought two and I haven’t even taken the other out of the boxes yet!  I could cry ’( 
UPDATE. 
After a nights sleep and having had time to calm down from the first attempt at this bed we did manage to put it together. But with one less bolt because as I said before the thread went. But it’s fine and it’s a nice bed. Just be warned if your no Bob the builder make sure you 100 understand the instructions before you start )