slumber

Short definition from Wiktionary

Noun

1. 1
   A very light state of sleep, almost awake.
2. 2
   A state of ignorance or inaction.
3. 3
   The snooze button on an alarm clock.

Verb

1. 1
   To be in a very light state of sleep, almost awake.
2. 2
   To be inactive or negligent.
3. 3
   To lay to sleep.
4. 4
   To stun; to stupefy.