GetTested’s **Melatonin Test** is an at home saliva test for people who feel stuck in a cycle of **poor sleep, difficulty falling asleep, irregular sleep patterns, daytime fatigue** or **waking up feeling unrefreshed.** When sleep is out of sync, it can affect everything from **energy and focus to mood, recovery** and daily routine. This test measures **melatonin**, a key hormone involved in the body’s natural sleep signal and circadian rhythm. It may be especially useful if you want to understand whether your sleep wake rhythm may be part of the reason you feel tired, out of sync or unable to get restorative sleep.