Well we've been experimenting with the night time lighting, since the 25 watt bulb in her lamp was just too bright, cut that down to a 15 watt bulb and wondered if that was still too bright (we only had it on when she was up or being settled down). Then I dug around in the drawer and found a proper night light (ie gets left on all night) and had that in there last night - but it seems pretty bright in the middle of the night and I'm waiting to see if that makes a difference over a few nights or just makes it worse.

I don't know, on the one hand they say to keep the room as dark as possible, but on the other hand a nightlight is softer than switching a lamp on!