hi..it is important to know why she is facing insomnia..or whether she is on sedatives or not..if OCD is associated with depression
, there may be insomnia..or OCD per se can cause imsomnia out of anxiety due to obsessional thoughts and compulsive acts..so report her psychiatrist
regarding all these and optimize her medication..also look to start behaviour therapy
with the help of a clinical psychologist
..have a good health..