Sack time and Sandman

Sandman and sack time are semantically related in sleep topic. In some cases you can use "Sandman" instead a noun phrase "Sack time", when it comes to topics like suspension of consciousness.

Sandman noun - An elf in fairy stories who sprinkles sand in children's eyes to make them sleepy.

Sack time and sandman are semantically related in sleep topic. You can use "Sack time" instead a noun "Sandman", if it concerns topics such as suspension of consciousness.