The past few nights, DS has been waking up several times after just 7-10 minutes! I put him down to sleep, he wakes after 30 minutes and has to be helped back to sleep. Then he does 2 or 3 times of 7-10 minutes before we finally get an hour stretch. What could be causing these mini wakings?! As if every hour or two (we actually got a 2 hr stretch last night) wasn't bad enough... these are just aggravating. And then overnight this may happen once or twice too.