Sea to Summit's website has details of what I think is their first range of sleeping bags:
http://www.seatosummit.com.au/sleepingbags/index.php
From a UL perspective the Micro range looks really good: 850+ loft, nano DWR coating on 20 denier fabrics, convertible to a quilt and, somewhat unusually, it's quilted but with baffles: looks like it's sewn-through but it isn't, it's actually baffled.
I did a quick search but they don't seem to be on sale anywhere yet.

