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Related Clues:
- Nighttime activity
- Insomniacs want it
- What tryptophan is said to induce
- Energy-saving computer mode
- Nighttime acquisition
- Minimal-power computer mode
- Look over 50? To begin with, please rest
- It 'knits up the ravell'd sleave of care,' per Macbeth
- Desire for an insomniac
- Get some Zs
- Raised strips drop off
- Undresses going up for a rest
- Daily ritual
- Perform a nightly ritual
- Opposite of stay awake