Why Sleeping In Isn't Enough

By Stacey Lindsay

Although the occasional all-nighter is OK, people who regularly skimp on z’s can’t undo sleep deprivation’s detrimental effects by simply hitting the snooze button on weekends, says a new study in the journal Science of Translation Medicine. Contrary to popular belief, the energy you feel after a Saturday morning sleep session is only short lived, according to the study. Chronic sleep loss has a cumulative effect on performance. Why? Lack of sleep raises levels of the stress hormone cortisol and affects a person’s ability to respond to stimuli, says Catherine Darley, ND, founder of Seattle’s Institute of Naturopathic Sleep Medicine. Sleep also plays a key role in mood regulation and overall physical and mental functioning. If you need some extra help falling asleep, try a natural insomnia supplement made with melatonin, tryptophan, or valerian. Here are our picks:

New Chapter Tranquilnite Plus ($32, 30 capsules; newchapter.com)
Irwin Naturals Power to Sleep PM ($20, 60 capsules; irwinnaturals.com)
Life Extension Optimized TryptoPure Plus ($40, 90 capsules; lef.org)
Sleep MD ($17, 30 capsules; sleepmdhealth.com)