Since he was about 5mo, DS has been crying in his sleep most nights. It usually happens around 2-3 hours after he has gone down for the night (he generally goes to bed around 7) - sometimes just a little moan but quite often a proper full-on weep that will last a few minutes. He's definitely asleep and settles back down fairly quickly but it's all a bit disturbing. Sometimes he does it a few times in the night - last night it happened three times, and tonight he did it half an hour after we put him down. It doesn't seem to be related to how well he's slept in the day/whether he's teething, though it seems to have got worse since he started wriggling round the cot at night. Could it be bad dreams? And is there anything I can do or is it just a phase? He is a good sleeper otherwise.
(Have been lurking for a while but this is my first post - would very much appreciate reassurance!)