Related Clues:

• Day break?
• Time out?
• Chronotherapy aids it
• Afternoon break
• 'The sweetest gift of heaven': Virgil
• Pulls a fast one on
• Heap
• Be quiet
• See 41-Across
• Hit the hay
• You might take it lying down
• Depend
• Drift off
• Veg out
• Catch one's breath