Since the olfactory neurons go directly to the brain, snuggling up against one can create a relaxation response almost immediately. It's easy to stitch your own dream pillow, using bits of fabric or a handkerchief. Leave an envelope-type opening in the back for inserting separate bags of herbs. Some of the most effective ones for inducing sleep are lavender and hops. Lemon-scented herbs, such as lemon verbena, are calming, as are rosemary and peppermint.
Chamomile is reputed to keep nightmares at bay.
If you have a cold, eucalyptus is a soothing choice. The herbs can be used by themselves or in any combination you find pleasing to your nose. When it starts to fade, just crush the herbs slightly within the pillow. Hops, however, are one herb that should be replaced every four to six months as they can become stale. Sprinkle dried herbs with water before putting them in the bag to soften them and prevent rustling when you turn your head on the pillow.