1. For an indefinite number of successive days
   - day after day

Encyclopedia: Day in day out

• sleeping around
• sleeping bag
• sleeping beauty
• sleeping capsule
• sleeping car
• sleeping draught
• sleeping hibiscus
• sleeping partner
• sleeping pill
• sleeping policeman
• sleeping room
• sleeping sickness
• sleeping tablet
• sleepless
• sleepless person
• sleeplessly
• sleeplessness
• sleepover
• sleepwalk
• sleepwalker
• sleepwalking
• sleepwear
• sleepy
• sleepy dick
• sleepy sickness