What is Airplane Mode? Airplane Mode is a mobile setting that switches off your phone or tabletâs connection to cellular and Wi-Fi networks, as well as Bluetooth. Itâs so-called because those radios may emit electromagnetic interference that can affect the operation of sensitive airplane instruments, or, according to the FAA, disrupt service in terrestrial cell towers, clogging networks with signals from the air.
Dream, nightmare, and vision refer to the kinds of mental images that form during sleep. Dream is the general term for any such succession of images. A nightmare is a dream that brings fear or anxiety: frightened by a nightmare. Vision refers to a series of images of unusual vividness, clarity, order, and significance, sometimes seen in a dream.
Nightmares are lengthy, elaborate dreams with imagery that evokes fear, anxiety, or sadness. The dreamer may wake up to avoid the perceived danger. Nightmares can be remembered upon awakening and may lead to difficulties returning to sleep or even cause daytime distress. Isolated nightmares are normal, but when dreams that bring extreme terror or anxiety recur often they can become a debilitating sleep disorder.