Bear with me as this takes abit of explaining. DS is 2.5 and recently had a baby sister - 5 months. DS been in his own room, in a bed since before DD was born. No problems. 3 months ago suddenly started (a) getting out of bed just after he was put down (can cope with that) and (b) waking between 1-2am, gets out of bed, and sits outside his bedrooom door till either DH or I put him back in bed. He has a stair-gate so can't get any further. He's quiet initially, but if left will start to shout. Not night terrors or nightmares as there's no shouting, and he's most definitely awake, but not at all upset. Goes back to bed ok. Just means that we're getting broken sleep. DD a good sleeper.
Anyone got any thoughts, or experienced something similar? Only thing I can think of is that his enlarged adenoids means its difficult for him to breathe, but we're not seeing the Consultant again till Sept....