Has anyone else noticed that when you are traveling (bus, car, train) even with the sunlight on the face, when you are just sitting and got too tired or when you are on a couch without a pillow or blanket, or even with jeans, shoos or uncomfortable cloth you have to fight to fall asleep?
And when you are in your bed, covered, with comfortable cloth, lights off and no noise you just can’t?
In: Biology
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