why does everyone immediately jump to the doctor nowadays?if it doesn't stop or it gets worse yes i would suggest a doctor or sleep study performed.i used to have night terrors as a child and this certainly sounds like them.i spent more than a couple sleepless nights but my dad helped.he said they were due to an extreme amount of stress that built up and spilt over during the dream cycle. your mind exaggerates your fears so when you would normally go to sleep and dream instead of dreaming your mind creates all kinds of scary shit because you are still focused on the stress when you go to bed.i would recommend trying to sleep in at least a different room if not a different place altogether.it may be best her taking a break from her work if possible for a short while and trying to calm down and slow her pace possibly.i have no garentee it will work but relaxation never hurt.