Really depends on the dog. Our dog, a 10 year old rescue mutt (who is the best dog in the world), likes to sleep in.
I have to get him out of bed for our morning walks - I usually take him out at 7:30 or 8; if my husband takes him out it's not till 9 or so, usually.
We know his needs may change as he ages. For now, he is super super easy and mellow about his schedule.