Would Siren Song and Mass Hypnosis stack?

[pblue]

Title says it all. I solo a lot and I am enjoying the pseudo-controller (with awesome defences) play style of my Sonic/SR Sentinel. Just wondering if the second Mag 3 Sleep might affect higher ranked mobs or is just redundant?

[Luminara]

Yes, they stack.

 

Use Siren's Song first, though.  It deals damage, damage breaks Sleep, there won't be a Sleep to stack if you use it after Mass Hypnosis.