How much does everyone's 4 weekers sleep? Owen slept through the night Friday night, every night…

How much does everyone's 4 weekers sleep? Owen slept through the night Friday night, every night since then he's been back on his every 3 hours. Tonight he last ate at 10:30pm, woke up whining at 4, ate 2 ounces (usually eats 5) and is back out. Not sure if his bath wore him out or what's happening. Lol.