It is common to see people from the for-profit world make jump to the nonprofit sector. The ultimate goals of a nonprofit and a for-profit might be different, but their management styles have a lot in common. That doesn't mean there aren't things that for-profit executives should keep in mind before switching their career paths.
Nonprofit hours aren't always the typical eight-hour workday. "No big deal", you might be think, "I had to work overtime a lot at my last job." We're talking about more than your normal overtime work here. There are often special events like galas, telethons, or community service work that can extend to all hours of the day, including weekends. Make sure to ask the kind of time commitment expected when you go in for an interview.
For-profit companies can have easy access to the things because of an abundance of money. Nonprofits aren't the picture of poverty they are sometimes made out to be, but they do need to use the donor dollars they get effectively. This can be a bit of an adjustment for employees who are used to having more resources at their disposal. This might not be the case depending on the organization you choose to work for, but it's something to keep in mind.
There are other differences to consider when transitioning to the nonprofit sector, but these are the two biggest adaptations you will have to make. Feel free to add your own experiences in the comments section below.