My DD who up to know has been a really good sleeper has for the last week been crying on and off from 5.30am. She's just started to crawl which I thought may mean she would be sleeping really heavily, but it appears to be worse. The problem is she is then exhausted by 8.30am which also means her daytime naps have gone crazy too. She has also started to get pretty stroppy too, she's a lovely little girl but since crawling, and having this disturbed sleep, it also means she loses her temper.
PLease help, is this normal/common, any hints on helping her sleep?