If you give him attention, he will just learn that the crying works. Put him in a crate, cover it with a blanket, and leave him at the other side of the house so you can't hear him. Don't tell him "no" or "be quiet"; he is looking for any type of attention and you will just be fueling hes misbehavior. After a little while, he should tire himself out of crying, or at least learn that it won't get him anywhere. You should also talk to your brother about ignoring it. If he yells at the puppy, he will just make it worse.
You should also let your puppy run around for a while before bed so he can get that extra energy out.