Laryngomalacia

So my 3 week old may have Laryngomalacia, a floppy airway that is underdeveloped and causes him to make noise when he breathes (especially when he's sleeping or eating). My pediatrician said he would be ok but also referred me to an ENT doctor. Does anyone else have experience with this? My niece had it when she was a child but outgrew it at about 6 months. I have an appt to meet with an ENT doctor at Children's Hospital but it isn't until the end of January so I'm on pins and needles.