Hi Karen,
We're NFP, but not in the typical sense (i.e. not a charity). We also hold our board meetings quarterly (4-5 hours in length), and 2-3 hours for each of the 4 committees. We normally do a 1-1/2 to 2-day strategic planning offsite annually (which also includes some other things like an annual Board education session, meeting with one of our Advisory bodies).
This year, of course has been different. We've been doing board meetings once a month - albeit the ones in between the larger quarterly meetings have been shorter (1-2 hours) and directly related to COVID related updates.
On materials, we have an intensive review cycle with our Executive Team. 3 weeks before, a first draft review (the longest 4 hour meeting), 2 weeks before a final review with the executive team and 1 week before send out the final materials to the board on an electronic portal.