The effects of Yawn are acute and immediate.  We have chosen the dose of melatonin so that you can use Yawn everyday without becoming dependent. 

That said, Yawn does not require habitual daily use in order to realize a benefit. Yawn is ideal for reducing sleep latency during restless nights. Many users also find it useful in combating jet lag and inducing sleep during long-distance trips (plane, bus, etc.).

Yawn is ideal for reducing sleep latency during restless nights. Many users also find it useful in combating jet lag and inducing sleep during long-distance trips (plane, bus, etc.).

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