Yes! This was our situation exactly. They were together in the same crib, then we had to split them up because they were really bugging each other and waking each other up. Finally, we put them in their own crib back in the same room, and that's how they are to this day.
Newborn and early infant stage, they sleep through everything. Then around 6 mos. they weren't sleeping well, and it was a nightmare. So part of the sleep better strategy was realizing they needed their own space. Plus I had them nap in separate rooms, but **** sleep all together at night. Worked great. Then around 14 months old, on a trip actually, they wouldn't settle down and go to bed without each other.. it was very cute. So we had them sleep next to each other (different beds) after that.
Every baby is different though.