I bought this to wear around in the evenings during the cooler months which around here runs from now (October) to April.  I slip out of my bluejeans and put these on.  I wear it practically every evening now.  It is soft and durable.  Had a pair for a year now, wash them regularly in normal wash and it is holding up fine.  The fly is convenient and the two pockets are a must.  After all, you need some place to stick a tissue at the very least.  I am 5'10" with a 32 waist so I ordered medium and it fits good.  Legs are not tight or form fitting (which I would not like for casual in house wear).  I can step outside for a few minutes and take out the garbage or do something and not feel like I am being too riskee' if a neighbor sees me.  Easy to put on and take off.  The fabric tie for the waistband works and the ties are thick and not easily broken.  It looks pretty much just like the photo...dark navy blue and black flannel weave.  Perfect for when your house temperature is lower during colder periods but would probably feel too warm on a summer's night when the house is warmer.  I don't wear these to bed, heck, I don't wear anything to bed so I cannot comment on comfort for sleeping.  I liked the first pair so much I just ordered a second one so I can rotate them during the week.