Question about sleep vs sleep effects specifically with regard to imperious bloodline

[Senko]

So my reading of this is YES but I just want to check I'm not missing something.

So I noticed that the imperious lvl 20 ability is . . .

Immortal Legend (Ex): At 20th level, you cease aging; no longer need to eat, drink, or sleep; and gain immunity to death effects and energy drain.

The variant tiefling trait gives you . . .
You do not need to sleep. You are not immune to sleep effects.

and the mythic sleepless ability is . . .

Sleepless (Su) (Mythic Adventures pg. 51): You no longer require sleep, don't become fatigued or exhausted from lack of sleep, and are immune to sleep effects. If you have abilities or class features that require rest before they can be regained, you can choose to regain them once per day by spending 1 hour in uninterrupted meditation.

So considering all these am I right the Imperious bloodline don't need to sleep ONLY means you don't sleep or aquire fatigue/exhausting from not sleeping but you ARE still vulnerable to sleep effects?

[Java Man]

I read it the same way.

[Lady Asharah]

Just because you don't require sleep doesn't mean you can't sleep. Or be put to sleep through other means.

Unless the ability specifically says you are immune to sleep effects.