How common is this and anyone got ideas what to do? She will wake about 2/3 or 4 in the morning, often because of a bad dream, then sit and read for an hour or even more sometimes and eventually get back to sleep but she's kind of wired and fidgety for ages. Generally is not very good at 'relaxing', in fact she relaxes by tensing her muscles IYSWIM.
I am knackered (it wakes me too) and so is she - baggy eyes every morning!