We do this, with Mondays and Fridays being commit/celebrate days respectively (work still gets done on those days but the meetings that set/review the sprint go

We do this, with Mondays and Fridays being commit/celebrate days respectively (work still gets done on those days but the meetings that set/review the sprint goals are held on them), and the three middle days of the week being "focus" days. It's worked well for us so far.