diff --git a/src/data/ability.ts b/src/data/ability.ts
index c44357cc3c6..c236aa85805 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -2282,6 +2282,34 @@ export class PostTurnFormChangeAbAttr extends PostTurnAbAttr {
   }
 }
 
+
+/**
+ * Attribute used for abilities (Bad Dreams) that damages the opponents for being asleep
+ */
+export class PostTurnHurtIfSleepingAbAttr extends PostTurnAbAttr {
+
+  /**
+   * Deals damage to all sleeping opponents equal to 1/8 of their max hp (min 1)
+   * @param {Pokemon} pokemon Pokemon that has this ability 
+   * @param {boolean} passive N/A
+   * @param {any[]} args N/A
+   * @returns {boolean} true if any opponents are sleeping
+   */
+  applyPostTurn(pokemon: Pokemon, passive: boolean, args: any[]): boolean | Promise<boolean> {
+    let hadEffect: boolean = false;
+    for(let opp of pokemon.getOpponents()) {
+      if(opp.status !== undefined && opp.status.effect === StatusEffect.SLEEP) {
+        opp.damageAndUpdate(Math.floor(Math.max(1, opp.getMaxHp() / 8)), HitResult.OTHER);
+        pokemon.scene.queueMessage(i18next.t('abilityTriggers:badDreams', {pokemonName: `${getPokemonPrefix(opp)}${opp.name}`}));
+        hadEffect = true;
+      }
+    
+    }
+    return hadEffect;
+  }
+}
+
+
 /** 
  * Grabs the last failed Pokeball used 
  * @extends PostTurnAbAttr 
@@ -3327,7 +3355,7 @@ export function initAbilities() {
       .ignorable()
       .partial(),
     new Ability(Abilities.BAD_DREAMS, 4)
-      .unimplemented(),
+      .attr(PostTurnHurtIfSleepingAbAttr),
     new Ability(Abilities.PICKPOCKET, 5)
       .attr(PostDefendStealHeldItemAbAttr, (target, user, move) => move.hasFlag(MoveFlags.MAKES_CONTACT)),
     new Ability(Abilities.SHEER_FORCE, 5)
diff --git a/src/locales/de/ability-trigger.ts b/src/locales/de/ability-trigger.ts
index 27d2053b621..7ba2b7af7f5 100644
--- a/src/locales/de/ability-trigger.ts
+++ b/src/locales/de/ability-trigger.ts
@@ -2,4 +2,5 @@ import { SimpleTranslationEntries } from "#app/plugins/i18n";
 
 export const abilityTriggers: SimpleTranslationEntries = {
     'blockRecoilDamage' : `{{pokemonName}} wurde durch {{abilityName}}\nvor Rückstoß geschützt!`,
+    'badDreams': `{{pokemonName}} wird gequält!`,
 } as const;
diff --git a/src/locales/en/ability-trigger.ts b/src/locales/en/ability-trigger.ts
index 88900741218..49505217126 100644
--- a/src/locales/en/ability-trigger.ts
+++ b/src/locales/en/ability-trigger.ts
@@ -2,4 +2,5 @@ import { SimpleTranslationEntries } from "#app/plugins/i18n";
 
 export const abilityTriggers: SimpleTranslationEntries = {
     'blockRecoilDamage' : `{{pokemonName}}'s {{abilityName}}\nprotected it from recoil!`,
+    'badDreams': `{{pokemonName}} is tormented!`,
 } as const;
\ No newline at end of file
diff --git a/src/locales/es/ability-trigger.ts b/src/locales/es/ability-trigger.ts
index 88900741218..cd6def4c628 100644
--- a/src/locales/es/ability-trigger.ts
+++ b/src/locales/es/ability-trigger.ts
@@ -2,4 +2,5 @@ import { SimpleTranslationEntries } from "#app/plugins/i18n";
 
 export const abilityTriggers: SimpleTranslationEntries = {
     'blockRecoilDamage' : `{{pokemonName}}'s {{abilityName}}\nprotected it from recoil!`,
-} as const;
\ No newline at end of file
+    'badDreams': `{{pokemonName}} Está atormentado!`
+} as const;
diff --git a/src/locales/fr/ability-trigger.ts b/src/locales/fr/ability-trigger.ts
index f668ee5e8ab..d74acb31b4f 100644
--- a/src/locales/fr/ability-trigger.ts
+++ b/src/locales/fr/ability-trigger.ts
@@ -2,4 +2,5 @@ import { SimpleTranslationEntries } from "#app/plugins/i18n";
 
 export const abilityTriggers: SimpleTranslationEntries = {
     'blockRecoilDamage' : `{{abilityName}}\nde {{pokemonName}} le protège du contrecoup !`,
+    'badDreams': `{{pokemonName}} est tourmenté!`
 } as const;
diff --git a/src/locales/it/ability-trigger.ts b/src/locales/it/ability-trigger.ts
index de41e087236..3f7d09c9221 100644
--- a/src/locales/it/ability-trigger.ts
+++ b/src/locales/it/ability-trigger.ts
@@ -2,4 +2,5 @@ import { SimpleTranslationEntries } from "#app/plugins/i18n";
 
 export const abilityTriggers: SimpleTranslationEntries = {
     'blockRecoilDamage' : `{{abilityName}} di {{pokemonName}}\nl'ha protetto dal contraccolpo!`,
+    'badDreams': `{{pokemonName}} è tormentato!`,
 } as const;
\ No newline at end of file
diff --git a/src/locales/zh_CN/ability-trigger.ts b/src/locales/zh_CN/ability-trigger.ts
index 85152b1bccc..d40fad7a10a 100644
--- a/src/locales/zh_CN/ability-trigger.ts
+++ b/src/locales/zh_CN/ability-trigger.ts
@@ -2,4 +2,5 @@ import { SimpleTranslationEntries } from "#app/plugins/i18n";
 
 export const abilityTriggers: SimpleTranslationEntries = {
     'blockRecoilDamage' : `{{pokemonName}} 的 {{abilityName}}\n抵消了反作用力！`,
+    'badDreams': `{{pokemonName}} 被折磨着!`
 } as const;
\ No newline at end of file