Buy 500 gms of sesame seeds oil and 15 gms of edible camphor. Heat the oil and while heating, mix the camphor well. Let this mixture cool and then store it in a bottle.
Every night, take small quantity of this oil, warm it and massage under feet before you go to bed. Within 30 minutes, your mind will relax and sleep.
If preparation is a problem, then you can search for Edible Camphor infused Sesame Oil and buy from a reputed brand. This oil, in warm condition is also used as nasal drops to cure seasonal cold, cough, sinusitis