Nidranasha can be correlated to insomnia. Insomnia is defined as difficulty in getting to sleep, staying asleep or having non- restorative sleep despite having adequate opportunity for sleep, together with associated impairment of daytime functioning, with symptoms being present for at least 4 weeks. Approximately 10% of the adult population suffers from an insomnia disorder and another 20% experiences occasional insomnia symptoms. Women, older adults, and people with socio economic hardship are more vulnerable to insomnia. Epidemiological studies suggest a strong increase of chronically disturbed sleep, including insomnia, with age. Estimates go up to 40-70% of the elderly population, and only ~20% report to sleep fine. A recent individual participant meta-analysis of insomnia symptoms across life-span in 1.1 million people from the general population reported that difficulty maintaining sleep peaked at 23% of the participants in the age category of 14 to 17 years, difficulty initiating sleep peaked at 23% at 18 to 25 years, while early morning awakening peaked only late in life, at 24% in participants older than 65 years of age

Shirodhara is one among the Murdhni taila and is mainly effective in Urdhvajatrugatavyadhis and Manasika vyadhis. It calms, relaxes and has a soothing effect on the mind. Jatamamsi (Nardostachys Jatamamsi DC) is tridoshara in action. It is Bhutagna, Balya, Medhya and possess Manasa doshaharaprabhava. It possess active chemicals like Valepotriates, Valeranone which act as a potent sedative and induces sleep, Sukhoshna ksheera is guru, snigdha, ushna and subsides vata. Shirodhara modulates the secretions of various neurotransmitters and hormones by adjusting the intensities of electromagnetic waves of brain. In this study an attempt is made to evaluate and compare the efficacy of Jatamamsi siddha ksheera shirodhara done for 1 Muhurta(48 minutes) and 1 Ghatika (24) minutes) in the management of Nidranasha (primary insomnia).