Buyer Beware!  For some reason I thought these scrubs were cotton!  Shame on me, but I was so excited by the price and all the great colors they came in, that I bought 4 of them to match all my pajama pants.  I like to wear them to sleep in -- but this material is UGH!  I can't bring myself to even try them on!  I can't imagine they would be comfy to sleep in, but once I find out, I'll add to this review and either return them or not.