Menstrual Related Hypersomnia:

Recurrent episodes of hypersomnia in association with menstrual cycle
Occurs within 1st months after menarche
Last generally 1 week with rapid resolution at menses.
Oral contraceptives usually lead to prolong remission

Differential Diagnosis

Tumors within 3rd ventricle
Psychiatric disorders
OSAS
Narcolepsy
Idiopathic hypersomnia
PLMD
Insufficient sleep
Environmental sleep disorder