[Everything doTERRA] sleep

I think I need some help with this individual.  I can usually help people with sleep problems.  I give them lavender first, then serenity, and if needed, I pull out sandalwood.  But I have a young man with a severe sleep disorder.  He was sent home from his mission because of it.  He can't sleep until about 5:00 am.  No meds have worked for him, and none of my 3 oil choices.  Does anyone know of something else I can try?

 

Thanks

Carla Jensen