Healing/Tank on PS3 or PS4

[Niwashi]

if a BLM, or any other player with sleep capabilities, puts the enemy to sleep BEFORE another player uses a action on the tank. then that player will not become engaged with the enemies that are sleeping.

so like if i am playing WHM and the BLM uses his Deep Sleep on the mob right away, before i ever use a action the tank. i will only be engaged with the enemies that are NOT sleeping. therefore i won't induce any enmity what-so-ever on the sleeping enemies.

I'm pretty sure you don't gain aggro based on what you do while a mob is sleeping, regardless of whether it's engaged or not, so that wouldn't change. (The casting of the sleep spell is considered to complete in the instant before the mob falls asleep, so that spell itself gives the BLM or whoever cast it some aggro, but not a healer he's partied with.) The mob should wake up with whatever aggro it had the moment it fell asleep.