At silly o'clock this morning I'd just tearfully waved DH off on his far-too-long deployment to a mountainous country somewhere east and had crawled back into bed when DD's monitor alarm went off. It's one of those sensor ones that goes off if it doesn't detect movement/breathing for 20 secs. I ran in and wobbled her a bit and she started up again with no fuss but I'm now a bit worried. She hasn't done this before but surely 20 secs is a bit long to be holding your breath?! Is this normal? I'm probably a bit paranoid now that I've got to look after our LO without DH for a while but anyone got any advice/experience?