Bottle making question

Even the perfect prep isn't quick enough for my hungry baby in the night so I am thinking of trying to make the night feed quicker by preparing things before we go to bed. Am I able to do the following: keep cooled boiled water in my sterile bottle, keep boiling water to top up the bottle in a flask and have my milk measured out in milk dispensers to add to the water when she wakes? Any advice, help or tips would be great! Thanks 😊