Hi, I've been a neonatal ICU nurse for 16 years. I'm sure Justin is in good hands. He must be pretty premature. Stimulation really bothers them because they are supposed to be in a warm quiet atmosphere, like inside mom. You might want to suggest to them that they bring children's books and read to Justin at his bedside. Babies know their parents' voices, they have been listening to you since conception. They also know mom by smell, maybe she'll want to take a small piece of material, sleep with it, and bring it for the baby.
I pray for them all, I hope it all goes well.