Bit of a stretch here I'm sure. I'm looking for a sleeping bag with a low profile when rolled up that can take temperatures under 30 degrees and doesn't destroy a bank account.

Any suggestions?

It doesn't even have to be a sleeping bag but a "system" of sorts for a 1 person tent that doesn't consume a bunch of room on/in my pack.

I have a sleeping bag I've had for a while someone gave me for free but even in a compression pack it's too large.