1
general::
see LAP OF LUXURY., In affluent circumstances, equipped with anything money can buy. For example, Jane grew up in the lap of luxury. This expression alludes to the lap as a place of comfort. [Late 1700s]
American Heritage Idioms
2
general::
Phrase(s): in the lap of luxury
Cliché in luxurious surroundings. • John lives in the lap of luxury because his family is very wealthy. • When I retire, I’d like to live in the lap of luxury.
McGrawhill's American Idioms And Phrasal Verbs