We're going in Jan. and I've been looking into this too, either a day room at Atlantis or an overnight room at Comfort Suites.
All I've been able to find out so far is that Atlantis will not let you pre-book a day room. They are first-come, first serve the day of. That is risky if you really have your heart set on it.
I haven't heard much about Comfort Suites, but I'd love to know more about this too.
If you do this, will you report when you get back?
Thanks!