This was the top pinned image of the month! I love it when the image contains the instructions too. I just ordered some lavender essential oil on Amazon (this one is the #1 best seller and has great reviews).
I put a couple drops on my palms every night before bed. I rub them together, cup them near my face, and take 5 slow breaths. My brain associates the smell with sleep and relaxation now, works every time.