I'm relieved to note that after a miserable February, our family seems to be on the mend from the flu. Jack is also undergoing a shift in his sleeping habits -- going to sleep and waking up a bit later, to our great joy. Lately he's asleep around 7:45 and up for the day at 6 or even 6:30. Much better than 5:30!
When he doesn't sleep well he is often crabby and tired all day, so we're hopeful his sleep will stay stable.