diff --git a/code/controllers/subsystems/mobs.dm b/code/controllers/subsystems/mobs.dm
index fdb6173d8f..8cc461e81a 100644
--- a/code/controllers/subsystems/mobs.dm
+++ b/code/controllers/subsystems/mobs.dm
@@ -13,16 +13,17 @@ SUBSYSTEM_DEF(mobs)
 	var/log_extensively = FALSE
 	var/list/timelog = list()
 	var/list/busy_z_levels = list()
-	var/slept_mobs = 0
+	var/list/slept = list()
+	var/skipped_mobs = 0
 
 /datum/controller/subsystem/mobs/stat_entry()
-	..("P: [global.mob_list.len] | S: [slept_mobs]")
+	..("P: [global.mob_list.len] | S: [skipped_mobs]")
 
 /datum/controller/subsystem/mobs/fire(resumed, no_mc_tick)
 	var/list/busy_z_levels = src.busy_z_levels
 
 	if (!resumed)
-		slept_mobs = 0
+		skipped_mobs = 0
 		src.currentrun = mob_list.Copy()
 		busy_z_levels.Cut()
 		for(var/played_mob in player_list)
@@ -45,9 +46,17 @@ SUBSYSTEM_DEF(mobs)
 			// Obviously we should try and get rid of this for performance reasons when we can.
 			try
 				if(M.low_priority && !(M.z in busy_z_levels))
-					slept_mobs++
+					skipped_mobs++
+					if (MC_TICK_CHECK)
+						return
 					continue
+
+				var/time = world.time
 				M.Life(times_fired)
+				if(time != world.time && !slept[M.type])
+					slept[M.type] = TRUE
+					log_debug("SSmobs: Type '[M.type]' slept for [world.time - time]ds in Life(). Suppressing further warnings.")
+
 			catch(var/exception/e)
 				log_runtime(e, M, "Caught by [name] subsystem")