sleep tight

Definition of sleep tight

:to sleep deeply and well
  • Good night. Sleep tight.

Word by Word Definitions

sleep play
  1. : the natural periodic suspension of consciousness during which the powers of the body are restored — compare REM sleep, slow-wave sleep

  2. : a state resembling sleep: such as

  3. : a state of torpid inactivity

  1. : to rest in a state of sleep

  2. : to be in a state (as of quiescence or death) resembling sleep

  3. : to have sexual relations

tight play
  1. : having elements close together

  2. : so close in structure as to prevent passage or escape (as of liquid, gas, or light) — compare lightproof, watertight

  3. : fitting very close to the body

  1. : fast, tightly, firmly

  2. : in a sound manner : soundly


Seen and Heard

What made you want to look up sleep tight? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to curse or denounce

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!