Added PlayerDeepSleepEvent

paper-api/src/main/java/io/papermc/paper/event/player/PlayerDeepSleepEvent.java

@@ -0,0 +1,47 @@
+package io.papermc.paper.event.player;
+
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Called when a player has slept long enough
+ * to count as passing the night/storm.
+ * <p>
+ * Cancelling this event will prevent the player from being counted as deeply sleeping
+ * unless they exit and re-enter the bed.
+ */
+@NullMarked
+public class PlayerDeepSleepEvent extends PlayerEvent implements Cancellable {
+
+    private static final HandlerList HANDLER_LIST = new HandlerList();
+
+    private boolean cancelled;
+
+    @ApiStatus.Internal
+    public PlayerDeepSleepEvent(final Player player) {
+        super(player);
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return this.cancelled;
+    }
+
+    @Override
+    public void setCancelled(final boolean cancel) {
+        this.cancelled = cancel;
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+}