Go to sleep and Roll in

Go to sleep verb - Prepare for sleep.

Roll in and go to sleep are semantically related in go to bed topic. In some cases you can use "Roll in" instead a verb phrase "Go to sleep".

Roll in verb - Pour or flow in a steady stream.

Go to sleep and roll in are semantically related in go to bed topic. Sometimes you can use "Go to sleep" instead a verb "Roll in".