How would I know if it was sleep regression? I just feel that on a 1hr 40 nap a 6hr A time is too much? Today went totally to pot - woke at 645, napped at 1210, woke at 1240, went back at 1, woke at 2, was still sleepy and went back til half 2? But tonight wouldn't go down til 820/825ish? What's going on? Any help?!