On The Hunt: Comfy, Non-Frumpy Loungewear

So say you've just come home from the office, are staying in for the night, and want to get out of your work clothes: what do you change into? I'm doing fine in the sweatshirt/tee department, but the other day I realized that I don't really have anything in-between pajama bottoms and jeans/dress pants. I want something that's super-comfy without giving up on style. I've spent the past hour combing over loungewear options, and I've narrowed it down to four:

1. American Apparel California Fleece Straight Leg Pant: Made of lightweight fleece with a slimmer (and more flattering), straight-cut leg than traditional sweatpants.

2. Victoria's Secret Cotton and Cashmere Wide-Leg Pant: The addition of cashmere would automatically make these a favorite in cold weather months.

3. James Perse Pajama Pant: Although these are technically called pajama pants, in black they look sleek enough to use beyond bedtime. I actually had (and loved) a pair of these for years, until I accidentally left them behind in a hotel room. I can also attest that the cotton is incredibly soft.

4. Keep Me for Bop Basics Pants: I love the drapiness of this style, the sweet little pocket on the back, and the fact that it's made of silky modal. One drawback though: the description says they're dry clean only, which I refuse to do for this kind of thing. I'm pretty sure I could just hand wash, though now I'm a little nervous...

What's your go-to outfit in your downtime?