This Works pillow spray - anyone made their own?

[googietheegg]

I've been using This Works deep sleep pillow spray and I love it, but at £16 it's so expensive! Has anyone made their own? It says the ingedients are lavender, vetiver and wild chamomile so I'm thinking I could buy those essential oils and then....what?! How much of each? Mix with water?!

I've made my own by steeping lavender from the garden in hot water for about 20 minutes, then putting it through a sieve and into a spray bottle. Seemed as good to me!