I take Quetiapine and Montelukast and went from getting less than 5 hours of sleep a night to a full 8 hrs sleep. I had insomnia for 30 years. For unknown reasons I would get shortness of breath at night and panic attacks at night to where I would start being afraid to go to sleep. I would wake up in a panic, like I'm not breathing, pacing around and a bit delirious. It usually happened during a raspatory illness that lasted a long time like bronchitis or seasonal allergy times. I also have extreme anxiety and worry excessively. cant shut my mind down. Quetiapine was a life changer. i sleep full 8 hours now, i periodically wake up but fall asleep quick