Considering my boss is a woman and does not have children of her own, I'm very fortunate to have her as my superviser. I have the ability to work remote when needed (dr. appts., kids' school schedules, illnesses, etc.).
We've briefly discussed a change in my schedule when I'm back from leave (12 weeks, 100% pay - I work for a large, international company with strong benefits), but I think she wants to see how things play out over the 12 weeks, as we are already short-handed. The preferred options I gave her were to work 4, 10-hr days (with two of those days being remote), or to continue working 5 days, with 3 of those remote (and, of course, with childcare for all days I work). My remote days would be flexible, though, based on deadlines.
The "four 10's" is an option that is offered by the company, so it's not something out of the ordinary and, considering my team's work has evolved to include international projects, it could work out to our benefit as I could log in some evenigns to take projects out of different time zones.
I know that I'm very lucky, so I will do whatever I can to make it work!