The three hours in a row thing is not uncommon. In fact, I realized the other day that I haven't slept through the entire night in more than 18 months
Your body DOES adjust to the lack of sleep. It just takes some time. I never would have thought that I'd be able to cope with this little sleep, but it happens.
Andre wakes up, but he usually goes back to sleep. Try keeping the lights off, or doing what normally gets him to sleep (rocking, singing, etc). Also, keep him awake with interaction for a couple or few hours before bedtime. You can get his schedule switched around, it'll just take some time to get it a habit.

Your body DOES adjust to the lack of sleep. It just takes some time. I never would have thought that I'd be able to cope with this little sleep, but it happens.
Andre wakes up, but he usually goes back to sleep. Try keeping the lights off, or doing what normally gets him to sleep (rocking, singing, etc). Also, keep him awake with interaction for a couple or few hours before bedtime. You can get his schedule switched around, it'll just take some time to get it a habit.