Deep Sleep Complex by Thorne

Deep Sleep Complex fits adults whose sleep is light, slow to come or broken by a busy mind, and who want to try an option without melatonin. It suits people who found melatonin left them groggy or who prefer not to take a hormone every night. It is meant for ordinary, occasional sleep trouble. Loud snoring, pauses in breathing, or poor sleep on most nights for months deserve a medical evaluation, not a supplement.

The formula has three ingredients and no melatonin. L-theanine, an amino acid from tea leaves, promotes a relaxed state without sedation and can make it easier to wind down. Chamomile has a long traditional use as a calming evening herb. Corn leaf extract is the newest of the three: corn leaves contain compounds structurally related to melatonin, and early research suggests the extract supports the body's own nighttime melatonin and sleep quality.

A serving is 2 capsules, providing 500 mg of corn leaf extract, 200 mg of L-theanine and 100 mg of chamomile extract. The label's suggested use is 2 capsules 60 minutes before bedtime, or as recommended by your health-care practitioner. It works best alongside the basics: a regular bedtime, a dark, cool room and no caffeine late in the day. Do not drive or do anything that needs full alertness after taking it until you know how it affects you.

These ingredients can add to anything else that makes you drowsy: sleep medicines, benzodiazepines, sedating antihistamines, opioids and alcohol. Check with your clinician before combining them. Chamomile belongs to the daisy family, so avoid this product if you react to ragweed, chrysanthemums or related plants, and note the corn-derived extract if you have a corn allergy. Chamomile may add to the effect of warfarin, so ask first if you take a blood thinner. The label says not to use this product if you are pregnant or nursing. If you have a health condition or take prescription medicines, check with your clinician before use.

Any easing of the wind-down from L-theanine and chamomile tends to show on the first nights. Give the whole formula 2–4 weeks of nightly use before judging it. The evidence is modest: studies of L-theanine and chamomile for sleep are mixed, and corn leaf extract has only a few small studies behind it. Compared with melatonin, this does not supply a hormone or shift the body clock; melatonin remains the better-studied choice for jet lag and shifted sleep schedules.