Everyone SVT talks to thinks it's good that the company was able to change to cope with the high electricity prices.
But working at night has meant different difficulties for different employees.
Johanna Månsson, for example, has children.
She goes to bed just after five - but barely two hours later has to get up with her son again.
- There is more planning and you try to get hours of sleep together.
Maybe you live a little more to try to juggle it with sleep, says Johanna Månsson about how her life looks now compared to before.
How long would you be able to work at night?
- It will take a while, absolutely.
But not forever.
Hear more from Johanna Månsson and her colleagues in the video clip.