my almost 8 months baby sleeps at 7pm til 7am. she wakes up 2-4 times a night but goes back down easily. she has 3 naps per day about 45minutes to an hour each. so in total, she sleeps about 14-15 hours everyday. i try to put her down for her nap 2 hours after waking up from the last. my issue is, she cant stay up for too long, after about an hour awake, she's already showing signs of sleepiness. i try to keep her up but she gets fussy. she's an active baby but not long enough. should i just let her sleep and sleep? but that means she wont have enough wake time to learn.