kezzylou I'm sorry things aren't improving. We have had a little bit of a better time since I posted. We live overseas so we have had a couple of night and day time naps since I last posted.
We have removed the cot from DS's room as it was confusing him and he was point blank refusing to get into it.
After a couple of nights in his gro-bag, we have now progressed to just pj's.
He sleeps with a small night light now (which I leave on all night ... I made the mistake of turning it off one night and he woke up and screamed the place down).
Instead of getting into bed with him, I (or DH) now sit next to his bed until he goes to sleep ... although I am leaving a periodic intervals telling him I will return so he gets used to me not being there.
He seems to have adapted a little better, but is waking quite early in the morning still... we are thinking that we might see how it goes this week with the sitting with him until he sleeps then gradually wean him off that as there does seem to be a genuine fear.
DS still hasn't really got out of bed when he is upset yet ... we are waiting for that to be the next phase.
I read somewhere if they get out of their cot/bed then the best thing to do is to return them with minimal eye contact and no talking ... not sure if I'll be able to do that when the time comes.
Good luck, let me know how things progress.