Review "Sleep No More"

We finally get back to a single part story. I kind of missed them and was sure glad this was not a 2 part story. Talk about a snooze fest, which is kind of funny since this episode is about sleep. Leave it to Dr Who to take eye gunk and turn it into a monster. Which I have to admit kind of looked cool, but the idea that these creatures are made out of sand in the corner of your eye, left me wondering if Steven Moffat ran out of ideas. This whole episode kind of felt like a filler after the Zygon episodes.