Hello thanks for asking from HCM for your health related queries I can understand your concern. Sleep disorders especially insomnia is a common distressing problem. She is having problem in getting sleep and also have multiple awakening in night. This cause her to remain drowsy and she yawns a lot. In my opinion you should consult a psychiatrist or sleep specialist for her problem. Medicines especially Z-drugs like Zolpidem, Zopiclone etc can be used to induce sleep. Extended release tablets of Zolpidem can also control her multiple awakenings in night. I would also advise her to improve sleep hygiene. Medicines like Mirtazapine, Amitryptiline, Trazodone etc can also be utilised for poor sleep problems. Visit a psychiatrist for proper prescription. Thanks, hope this helps you. Take care