R.J.
My now 21 month old daughter did the same thing for a few months. Probably from about 16 months up until the last month or so maybe. Crying it out didn't work & neither did taking her to bed with us. We tried earlier bed times, later bed times and eliminating a nap and none of that worked. That was just when she woke up, no matter if we put her to bed at 6:30 or 8:30 or anything in between. We darkened her shades, used a white noise machine and changed the temperature in her room and those things didn't work for her either. I know this isn't helpful, but wanted you to know you're not alone. I hope you get some good suggestions, in case mine starts doing it again at some point! Hang in there!