Insulation between floors?

hello folks,

I am renovating an old bungalow and have an attic room in one section. This is a gable end and is exactly over the kitchen, wall for wall.
I will have to insulate above at the rafters obviously but what about the floor/ceiling between the 2 floors? There will be a range in the kitchen and ideally I have no issue if this heat travels upwards to the bedroom. But then, some sound proofing too might be a good idea? Whats the norm here?
Opinions appreciated.

Thanks.