Bedtime. . .

My oldest son is 13 and thinks he is 19, he has complained the last several months about his bedtime.  My kids start toward bed around 8:15 to 8:30 with a goal that they are in the bed by 8:45.  Don't everyone blow up my comments section with how strict I am being.   My kids are so grouchy when they don't get enough sleep I just believe they need to go to bed early.  Dear hubby has been championing the cause for a later bedtime for my oldest.
Here is the other grab.  My youngest is 10 and  the boys share a room.  They have only been sharing a room maybe 5 years.  Since they are sharing a room it is hard to send the youngest to bed by himself.  I am really trying to adapt our bedtime routine to fit both boys.  Our bedtime routine consists of:  nightly devotions, Bible readings, prayer, and teeth brushing.  I know that my oldest is growing up and that he should probably not have to go to bed so early but, I also know how bad they need their sleep during the week.  Now I am way more relaxed about bedtime on the weekends and during the Summer.  It is just during the school year that I stick to my early bedtime.
For about a month now the oldest has been going to bed at 9 and the youngest still going to bed at 8:30ish.  So far it is working out ok, the oldest is getting up and getting ready fairly well in the mornings and the youngest is not too traumatized going to bed alone.  The first of many hurdles to having two boys only three years apart.