For the past about 2 weeks, my 5 yo DD awakes after about an hour of sound sleeping, sits up with eyes open, but clearly not awake and begins talking (mostly inaudible) and often ends up crying if I don't try to wake her. I usually take her to the bathroom and it wakes her enough, but she also drools excessively and does not remember a thing when she wakes up. Has anyone else experienced this? Is there anything I should do about it or do you think she'll just outgrow it? Usually it only happens once and she's back to sleep all night, but sometimes it happen up to 3 times in the same night.