Answer: WHITENOISE
The answer WHITENOISE has 16 possible clues. See the results below.
Possible Clues:
- Unvarying background sound
- It's often played in the dark
- Sound in some sleep apps
- Sound used as a sleep aid
- *Background sound that may be a sleep aid
- Concentration aid
- Knock one back in discerning frequency that one associates with a fan
- Broadcast I see, on with random sound
- 1985 National Book Award winner about an "airborne toxic event"
- Classic DeLillo novel