Hi, I've heard that the optimum learning time for newborns (or babies in general) is when they're in the 'quiet alert' phase of wakefulness, but that they also go through 'active alert' phases. I think I'm having trouble distinguishing this latter with overtired flailing of limbs etc and sometimes trying to get my 5 week old down for his nap too early? Anyone got any info on what to expect during wake times re these two states? Or does 'active alert' just mean crying etc?! Do they alternate between the two and then get tired, or is 'active alertness' sometimes the first sign of tiredness?