The bassinets hook onto the "wall" that separates the business class and economy class - right in front of the bulkhead seats. Because they're hook-on gadgets, they have a weight limit of ~20-25lbs (~9-11 kilos). If your baby weighs more than that OR is longer/taller than their "magic number" then they will not allow her to use the bassinet - in theory, anyway.

Generally speaking, flying with kids is not fun. . .and, yes, you end up holding them most of the time. If you sleep at all it will be a miracle.

Sorry for the bad news :o(

Expat SueƱo