From very own experience couple of years ago:
highly recommend that you also check current rules on weight limit for bassinet !
In our case, our daughter was 1 or 2 kg over ANA’s own limit, but still under the official limit printed on the bassinet itself (a few kg difference between ANA & manufacturer, don’t recall exact numbers anymore, sorry).
Being Japan, they of course didn’t let us use it on that flight anymore for their “rules”, no matter bassinet itself allowed higher weight still…