Usually molars and then eye teeth and more molars at two! Some days I wish they were born with teeth!
I would think if he was up at 7:40 then a 4/4:30 catnap and bed for 7:30/8 would do - if you only get one nap I would think bedtime would have to be way sooner - depending on when he woke yk? So if he woke at 1:00 then bt at like 6:00 pm or earlier!