DD is 16 months and has about 1hr-1.5hrs nap per day. Usually its about 1 hour 15 mins. I think she needs more because she always wakes up grumpy, but she's never been a big daytime sleeper even when she was on 2+ naps a day. She's up by 6.30am and in bed by 7pm. She has a lot of energy and stamina during awake time. She had an unsettled night last night and has just woken up from an almost 3 hour nap. In a great mood. Can I do anything to extend her naps or just accept that she takes what,she needs?