If you are home with her she will not go completely asleep but that is fine. She is just staying awake enough to know exactly where you are. My guys do the same thing when I am home on the weekend. I call it sleeping with one eye open.
Shanks is exactly the same.. Hes not a morning dog at all (not a bad thing) he wakes up at 06:30 normally when our alram goes off he wants a toilet break a little food but mostly some love and attention on the bed then he goes back down stairs and will just laze around, or sleep if I leave him alone... Then hes wide awake for a nice walk and play in the park at lunch time then another little doze mid afternoon ready for the fun of the evening...A tired puppy is a good puppy. Sounds like you are on the right track. You will find that there will be times when your pup have active periods. For Tucker, it is from 6 to 10 pm when everyone is home. On vacation, he is absolutely exhausted at the end of the day, when he is active all day, even if it is just walking around.