Pillow Immortal Journey

An ordinary commoner who is useless at everything suddenly enters a parallel reality fantasy world whenever he falls asleep. In dreams, he can fight monsters, find opportunities, and meet the only female lead. Upon waking, he brings back skills, treasures, and memories. The story is lighthearted and hilarious, with the cowardly protagonist causing trouble in all sorts of ways, daily comedic mishaps, and while idling through life, he inadvertently stirs up the three realms. He only secretly pines for a dream goddess.