Every single night follows the same pattern, Daisy will sleep completely silently between feeding until the third feed at around 4-5am. After this feed she will spend the next 3 hours sleeping like this: http://www.youtube.com/watch?v=AD8tuYg3Wbk She will do this for 5 minutes then spend 5 minutes completely silent, then move and grunt loudly like she's frustrated for another 5 minutes. She will literally sleep like this for 3 hours and it is impossible to sleep through it. I don't really understand why it always happens at the same time and why the rest of the night she is totally silent. During the day she's also silent in her sleeping, it's just the 5am to 8am stage that she does this. Anyone else having strange problems like this?