What has your nose got to do with sleep?

Have you ever spritzed your pillow with lavender and wondered, is this actually doing anything? There are some surprising ways that smells can affect sleep, and it might have something to do with how our brains work. Norman and Tegan discuss how smells, good and bad, could affect your nightly snooze. References: From antiquity to modern hygiene: the archaeological and medicinal legacy of lavender…