Which essential oil is linked to sleep disturbance?

• A. Mint oil
• B. Tea tree oil
• C. Chamomile oil
• D. Bergamot oil

Answer: (A)

The concept being tested is how certain essential oils affect sleep, specifically which might disrupt sleep due to their stimulating properties. Peppermint (mint) oil contains menthol, which can act as a stimulant, heightening alertness and potentially increasing heart rate. Inhaling or using it close to bedtime can make it harder to relax and fall asleep, contributing to sleep disturbance.

In contrast, chamomile oil is well-known for its calming, mildly sedative effects and is often used to support sleep. Bergamot oil, a citrus scent, can help ease anxiety and promote a sense of calm, which can also aid sleep. Tea tree oil is primarily used for antimicrobial or topical purposes and isn’t typically linked to sleep disruption; it doesn’t have the same stimulating or sedative associations as the others.

So the oil most commonly linked to sleep disturbance is the mint oil due to its stimulating properties that can interfere with winding down at night.