My DD stopped taking naps at school. She still lays down for quiet time, but she is hateful by the time I pick her up at 4. I put her to bed at 7pm, and she gets up most day at 7 so she is sleeping for 12 hours. I just can't deal with the whining or attitude that I get from her in those 3 short hours because she is exhausted. I've tried timeouts, earlier bedtime (it was 730), consistent bedtime routines, and a behavior chart with no luck. Please help me, I need my sweet little girl back..