Related Clues:

• Still in the sack
• Still snoring
• With "slug," a lazybones
• Horizontal, perhaps
• Under covers
• Like many sleepers
• Out, maybe
• Resting, say
• All tucked in
• Opposite of alfresco
• Sleeping, say
• Between the sheets
• On the mattress
• Recuperating, maybe
• Not well, perhaps