Does the trick
I have seen other items similar to this, so I was curious.  The part that you curl your hair around is a little flimsy, the fabric seems cheap, but if you're careful with it, should last a long time.  It definitely works, but I think most items like this could work.  I could never sleep in it, too uncomfortable, so I wait until I have a spare 3-4 hours to leave in before going out.  Do not use when your hair is completely wet, your hair won't dry enough before taking this out.  Hair has to be only slightly damp, or dry for this to work.
Rating: 3 stars