E. I'm like your husband where I would keep the boys together for now. When my girls were small they shared a room, yes some times my younger one would be signing and would keep the older one up, but just like if your husband is reading in bed with you, you do fall asleep. My girls are 21 and 19 and they now share an apartment away at school, they go to different schools in Santa Barbara. They started having their own rooms around age 10, just because the older one said needed her own space for her stuff. (that's when the fights about she is in my stuff started because of different rooms). When they were together it didn't happen so much, they shared more.
Good luck and welcome to NV, I've lived here for 2 yrs now.