My DS has been sleeping through the night since he was 10 weeks old. I know all about sleep cycles and how they sometimes wake up in between the cycles etc but for the last few nights he's been doing something really strange. He would wake up, wide awake with eyes wide open, and stay like that for about 20-30 minutes, then back to sleep. He used to wake up for a feed at 1am and 4am and even when he stopped doing that, he would normally wriggle a bit at these times. But I am not sure if it's entirely normal that he wakes up and stays awake for that long now? He didn't cry, didn't seem to need my attention at all, went back to sleep by himself. Should I maybe get up next time it happens and help him get back to sleep? Anyone else had their DC waking up like that? It all maybe sounds a bit silly but I'm a first time mum and anything slightly odd worries me.