Related Clues:

• "Ni-i-ice!"
• 'Makes sense now'
• 'How very nice!'
• You might say it during a depression
• Ooh's partner
• Response to a backrub
• Open-wide word
• "That's better!"
• "That's the spot!"
• 'That feels good'
• 'That feels great'
• Sound at a sauna
• "That feels goooood!"
• Spa sigh
• Depressing reaction?