Add the witch hazel and essential oils to the spray bottle, then swirl it around to combine the scents. Let that sit for about 10 minutes, then swirls again to make sure it's well combined.
Next, using a funnel or dropper if you need to, add water to the bottle leaving just enough room in the bottle that you'll be able to shake the ingredients to combine.
Screw the top back on your spray bottle and shake until well combined.
Notes
To use, shake the bottle, then lightly spray the air or linen to help support a restful sleep.