I have actually purchased this exact blanket before and it is extremely comfortable. It has a Sherpa reverse which makes it nice to have the two different comfort options. It's 50" x 60", and the material is 100% microfiber, and is also machine washable.
I've had this blanket for over a year and has been through numerous wash cycles and is still in mint condition.
$19.99 for the 50" x 60" size in 4 different colors.