Eight Ways to Sleep Tight at Last You know caffeine doesn't help—but did you know vitamin D does? By Evann Gastaldo, Newser Staff Posted Feb 5, 2011 2:50 PM CST 9 comments Comments Want a good night's rest? Follow these tips. (Shutter Stock) (Newser) – We all know sleep is important (it can, after all, make us more attractive): So how do we do it better? On Dumb Little Man, Kat Eden offers up 10 tips: Get more vitamin D: Go out in the sun, include it in your diet, or ask your doctor about a supplement. A lack of vitamin D can have numerous negative effects, including a shortage of melatonin—the hormone that helps you get better sleep. Cut back on the bad stuff: You should ideally stop ingesting caffeine, sugar, and other stimulants as early as 2pm, and stop eating and drinking alcohol at least two hours before hitting the sack. Eat some complex carbs: Certain foods, like those containing tryptophan (warm milk, turkey) are said to aid sleep, and many health experts include complex carbs in that list: Think oats, bananas, root vegetables, brown rice. Use a sleep track: Technology before bed (computers, TV) or in the bedroom (bright alarm clock lights) are bad, but a relaxation track—there are tons on the Internet—can help still your mind. Click for the complete list, or check out another reason it’s important to get a good night’s rest.