I got one that has a hot and cold water hookup, so no electrical connection needed.

The fear and shock of unholy caress is better than caffeine in the morning. Seriously though, you get used to it.

see, that's the thing - if it's first thing, your cold water pipes will be room temp because they've been sitting there all night.

obvs dependent on usage throughout the night and who else uses it in the morning, but at least in my house, it takes some time for me to get actually cold water upstairs in the morning