It appears we have hit the big three! We are on vacation, in a foreign country and my 7 month old son is just beginning to break a tooth. We did sleep training at 5 months and he has been sleeping 12 hour nights with no feeds since then. From the first night we arrived to my in laws house, my son has been waking up 2-3 times a night hysterically crying. The first time he wakes up (usually 2-3 hours after bedtime), he refuses to go back to sleep for at least an hour or two. I am not sure how to deal with this wake up (and the others). I'm nervous that all the hard work I did with him 2 months ago is ruined. I am doing our usual bed time routine, at the same time as at home, and treating night wakings the same as well. The only difference is that the three of us are sleeping in the same room and we are in a foreign country (with a 7 hour time difference). Any advice?