I just put them both to bed, J had his bottle and T had a story. They both go down to bed no problem, Jude just wakes up still quite alot but he has been poorly of late! It's quite a novelty for T to have his little brother in his bedroom.
J wakes up first in the morning and T follows. It really just sort of works out on its own.
T has always been a light sleeper but I think he just knows its Jude murmering and doesn't hear it.