I find that numerous products may be so popular they can be out-of-stock for weeks or even months! I guess you just have to keep checking or ask Customer Service when they expect such items back in stock!
Sadly as far as I know your best bet is to set an alert and that will notify you via email when the product will be back in stock on the site. I do this for a few products because sometimes it varies greatly in time of when they are restocked.
I REALLY want this vibe, Im just wondering how long I'll have to wait until I can get it.
I have seen this one go out of stock within a DAY of it coming back. I suggest that the second you see its back that you nab it...regardless of color. I tired to wait on color and ended up waiting an additional month