Sleep is typically broken by any attacks. How do passive damaging abilities like necrophos's or radiance burn affect sleeping units? Do they cause them to wake up or not?

  • possible duplicate of What are the exact mechanics for Bane's nightmare skill?
    – l I
    Commented Jan 9, 2014 at 21:15
  • 1
    Necro passive is HP removal, so it might be an outlier.
    – Decency
    Commented Jan 9, 2014 at 21:40
  • @spartacus: What I know is that applying logic to dota's skill and item interaction is often a vain effort.
    – apoorv020
    Commented Jan 10, 2014 at 13:44
  • @apoorv020 that's because dota1 has some coding flaws and some bugs were then declared features. However if you understand which spells are based on what other spells it becomes more clear.
    – Wandang
    Commented Jan 10, 2014 at 14:59

1 Answer 1


Anything that is damage will break the effect. Unless the unit is also affected by invulnerability from Naga Siren's ultimate, in which case, no damage, no waking up.

HP removal effects such as Necro's aura or wave of terror will not break sleep, will not break clarities or salves, however they will do damage through invulnerability effects such as Naga Siren's ultimate.

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