Please visit the web-site from Luxum Light. Joseph Luxum is in the ministry for Jesus since more than 40 years as a bible teacher an evangelist with a great healing ministry. I know him since more than 10 years. When he was young, he also was attacked by the devil and every night he woke up with nightmares. Please contact him with this problem, tell him about and ask him to pray for your mother. It would be also very helpful for your mother to hear him preaching, how the lord helkped him, to overcome this problem, to resist the devil and to find protection and shelter under the wings of the almighty.Your mother needs a personal revelation about the Lord and that he is above all devil, deamons forces, circumstances or whatever. Then she needs a personal revelation about what the blood of the lamb has done for her, viz (namely): it has redeemed her completely and the devil has NO and NOTHING AT ALL, the right to do any harm to her, because Jesus has PAID for her with his own blood. Your mother neads teaching and personal revelation, but also must resist the devil, what means she must obey the lord walk in his ways.
So we can pray for your mother. Have faith in god. Our lord Jesus is much greater than the devil and open your eyes to see all the thousands and thousands of angels. The lord has promised us in his word, that the angel of the lord is around those, who fear him. I pray for your mother, to get personal revelation about the truth in Jesus but also that the lord will give her all obedience, to trhe way of the lord. May she find rest and peace under the wings of the almighty!