oops- i initially read this as 7.5 months.. and thought YES WAKE HIM!! BUT- At 7.5 weeks, how is his weight? Any issues? does he wake more frequently at night needing a feed? At that point i would wake my guy for feeds ever 4 hours as his weight was good and he was only waking a standard amount of time. That's my experience- Are you BF or bottlefeeding...?