A couple of weeks ago, I wrote a post about how the Men's luxury market is expanding, but it looks like all of the men's markets are expanding. Now men can join in on the "Pajama jean" trend. Lakeside.com now has a "knit jean" for men, which comes in two different styles, both in dark and light washes with "realistic designs of patches, rips, and what looks like your favorite pair of boxers peeking out the top; the back has the same great details." They retail for $12.95 but are (un)fortunately are currently sold out.
If you have to mix leisurewear and casual wear, a better option may be Joe's take on the trend, but personally, I like my sweats and jeans separate.
Will you (or do you already) wear pajama jeans?