8.5 hours

Let the record show that Fiona slept from 8:30 pm to 5 am NON-STOP on July 24th, 2010.  Of course this was the weekend so I stayed up until almost midnight!  If only this was a nightly occurrence.  She still varies quite a bit on how often she wakes up.  It's still mostly once or twice.  She typically goes to bed around 8:30, wakes up once or twice in the night and then is up for the day between 6:30 and 7.