Hi

It is probably an age thing with me, but I do like to sleep on a mat. A good nights sleep in my view makes for a better ride the next day.

In the past I have used various Therm-a-Rest self-inflating mattresses but have recently started using an Exped Synmat UL 7. These are light, pack down small (see the photo) and are very comfortable - oh so much more comfortable than a Therm-a-Rest. You can also probably buy them cheaper here in Australia at http://mainpeak.com.au than the US which is nice for a change .



In respect to a sleeping bag, I would consider either a quilt (these can be lighter and pack down smaller) or a bag such as the Western Mountaineering Hilite. These are both light and small in terms of packing. Seriously good bags by all accounts.

http://BackpackingLight.com is also worth checking out for ideas. These guys are all about lightweight backpacking.

Regards
Andrew