Lounging in bed on weekends is one of my small joys.
Tips
memory
赖 'to cling to / refuse to leave' (as in 赖账 'refuse to pay a debt', 赖皮 'shameless') + 床 'bed' — literally 'cling to the bed'. The act is awake-but-not-getting-up, which is exactly the English 'lie-in'.