From the NY Times Health section a couple weeks ago, a Really? piece questioning the claim that chocolate can disrupt your sleep. Their conclusion? Chocolate could contain enough caffeine to keep you up at night.
That probably goes extra for me, as I rarely consume caffeine that’s not in chocolate, so I’m super sensitive to its effects. White chocolate doesn’t have caffeine, though, so that’s safe!
Varsha 
sophia cook 
Vishal