This app is generally good. I agree with the other reviewers, I wish it was one app combined with iBaby feed.
My main complaint is with the charts tab. I wish you could scroll through a graph of your babys sleep patterns for more than one week ago. It bothers me that you can only see his patterns of wake and sleep for the current week. I would settle if the feature that allows you to export data to excel would come with some directions about how to recreate the charts from the raw data. Another issue is with the bar graph analyzing total sleep time each day. Although you can scroll through old data here, I am not sure that it calculates total daily sleep hours correctly- either that or the summary tab is off.
Finally, it would be even better if you could sync this app with multiple devices.
Overall, thanks for the most useful sleep app I have found so far!
Arielle Saavedra about Baby Sleep Timer