This is the response that I got.
The session timeout is 1 hour. We have discussed but have no plans to change the amount of time (as of now). In this case data security outweighs the inconvenience of logging in again. How upset would our users be if their data was compromised? As FitDay continues to grow we will most likely be adding more security. It's the way of the world right now. At least we're not like the banks - 10 minutes.
For now the best option is to use a password utility to remember your password. I'm sure we will look at this again in the future.