Life can get stressful when you and your partner have different schedules. If you need to rise at 4 a.m. to make it to work on time, and your partner has an afternoon shift, you risk waking them up ...
To say “I’m not a morning person” would be an understatement. Not only is it hard for me to be useful in the first hour (or so) of being awake, but it’s hard for me to wake up. I mean, really hard.