What cause low libido and poor sleep?

Sexual function is best mediated by a balance in autonomic nervous system function. High sympathetic activity will dysrupt both sleep and libido, although poor sleep can secondary affect libido. Evaluation of a sleep disorder would be advised, but also assess thyroid function, anemia, and general health parameters. Female hormonal factors may be playing a role. Your doctor can sort out.

Getting a good night's sleep is very important for physical and mental health. Insomnia might be due to several different reasons. First have a complete physical exam by a Dr. to rule out an underlying biological problem. If no problem consult with a Clinical Psychologist for psychotherapy help & in addition you may need a Psychiatrist for medication. You may need a referral to a sleep study.