This an average amount of sleep needed and for teens this is a minimum (which most teens do not get during the school year! A good reference point for all ages'. I wish Owen would sleep hours and nap during the day!
Definitely doing this for monthly photos. No matter how long these babes will be with us we will celebrate and document their growth just as we would our bios. After all someday, God willing, one of them will be our forever baby :)