Boil & then straight into flask
I personally have always made feeds up in advance for overnight to save time! As long as u cool down and put straight into the fridge it's fine
I second Rebecca's approach, especially if your baby takes bottles straight from the fridge
Have you tried a room temp bottle ? I’m not sure where you are located but when my son was first born I had a heated water dispenser (from Amazon) used it up until 6 months and then transitioned to room temp bottles which is just using distilled water from a jug right into the bottle. It made night feedings so much easier
Warm milk is meant to be better for their digestion. I used hot water from a flask and the nuby rapid cool
I had a flask of cool boiled water and then just did a hot shot from the kettle when needed (takes less than a minute for a kettle to boil but no reason why you couldn’t have a hot flask and a cold one by the bed if you didn’t want to get up)
I always put it straight Into the flask x