Unconscious

Unconscious ○ An unconscious creature is incapacitated, can’t move or speak, and is unaware of its surroundings. ○ The creature drops whatever it’s holding and falls prone. ○ The creature automatically fails Strength and Dexterity saving throws. ○ Attack rolls against the creature have advantage. ○ Any attack that hits the creature is a critical hit if the attacker is within 5 feet of the creature. — Basic Rules
  While the Prone condition may be the most common condition applied in combat, the Unconscious condition is likely the most common condition overall. This is mainly because whenever a creature sleeps, unless they have a feature like the Elves’ Trance, they are considered unconscious. Just like in real life, being unconscious is only really a bad thing if you fall unconscious unwillingly. The most common way for this to happen in D&D 5e is to have your hit points reduced to 0. There are also a number of abilities listed below that can cause unconsciousness without reducing a target to 0 hit points. The effects of this condition are very similar to that of Paralyzed. The exception is that unconscious creatures are unaware of what is happening around them and they drop whatever they are holding. While this may seem like a potent effect (because Paralyzed sure as hell is), most abilities that cause unconsciousness are negated when the unconscious creature takes damage with the exception of being reduced to 0 hit points. Methods Some examples of things that can apply the Unconscious condition are: ○ Sleep (spell) ○ Eyebite (spell) ○ Symbol (spell) ○ Pseudodragon’s Sting (monster ability) Sprite’s Shortbow (monster ability)