Related Clues:

• Sleep-clinic study
• A bed habit
• Dream on?
• Dream letters
• Sleep stage, for short
• Sleep study abbr.
• Insomniac's desire
• What a new parent craves
• Go under cover?
• Sleep lab acronym
• A kind of memory
• Retirement plan?
• What a new parent may lack
• Dormant state
• Sleep lab study, briefly