No specific recommendation of a model, but for a great deal, follow sierratradingpost.com and wait until they announce a 35% or 40% off deal on Twitter. (those are usually up for only a few hours at a time, mostly after 5 pm, but they announce their intention during the day). I score a lot of gear at @ 70% off. I have bought at least two sleeping bags from there; they have good gear.
I sent you a PM.
Nice tags, all.
Way to bogart the info Leebs.
I didn't say anything to him yet other than say what he's looking for (in addition to boots and a bag) and I'll make some recs.
I also asked why he wanted synthetic over down (since I believe down is best 95% of the time).
so you're cowboy camping?
eta: how much do you want to spend, or how much are you willing to spend?
oof. under $100 is difficult if you want something that won't take up your entire pack and weigh 5 lbs.
it's doable, but you're definitely in the "you get what you pay for" realm with that.