If you want something lighter and more comparable to the SWT, check out the BWD Winter Dream, version 2
. It is 13'x10' and can also be closed on both ends. In fact, each side has 3 set of mitten hooks that can be locked to close them off as well as loops to stake to the ground. It comes in at just around 21oz.
I got mine last week and the craftsmanship is amazing.
: It is on sale right now.