Related Clues:

• Baker's dozen
• Baker's dozen quantity
• Missing hotel floor?
• Time of day
• Triskaidekaphobe's fear
• It has many soap slots
• Uncommon elevator button
• Datebook section
• Siesta time
• See 1 Across
• Coven count
• Either 17- or 57-Across
• It's not Lady Luck's number
• Unlucky for some
• Unlucky number