Related Clues:

• Like many sleepers
• Resting, say
• All tucked in
• Sleeping, say
• Between the sheets
• On the mattress
• Recuperating, maybe
• Supine, possibly
• Laid up, so to speak
• Lying, in a way
• Not 1 Across
• Opposite of up
• Under cover, perhaps
• Sleeping, most likely
• Having hit the hay