We are constrained by the decisions we have made based on the preferences that we maintain.
Thus-constrained, this person states that they're able to get 5 more minutes of sleep every night and still make coffee before taking the train to work. That's ~25 minutes per week, or ~1.8 hours per month.
They didn't have to choose to go to bed earlier in order to gain this time and still make coffee in the morning. They were going to make coffee with a kettle anyway and were constrained by a the necessity of maintainining ownership of a kettle with which to do that.
So they simply selected a kettle that can be safely automated so as to be ready at the right time every morning instead of one that cannot be. In exchange, they gain around 20 hours per year, for every year that this kettle lasts for. (What would you do for nearly an entire extra day, per year?)
Sure: It's adjustable, just as many constraints are.
Maybe there's even a coffee shop around the corner that they could work at instead, and they could just walk there and brew themselves a cup of coffee using the hot tap on the espresso machine before they start their shift -- and skip the train.
But maybe that wouldn't fit into the constraint of being able to support the dwelling that they prefer to live in.
So maybe they could soften that constraint as well, and live a little lower. (Maybe they can soften enough constraints that they can just live under a bridge somewhere, with no permanent dwelling, no job, and no coffee. Perhaps, if we look hard enough, we might find that even the constraint of living a life -- at all -- is also adjustable.)