New Yorkers have long complained that city apartments are like roach motels. If Mayor Bloomberg gets his way, they’ll be about the same size.

Mayor Bloomberg launched a contest Monday to stir development of teeny-tiny apartments — called micro units — for young singles willing to cram themselves into shoebox-sized digs.

The new closetlike flats will be just 275 to 300 square feet — larger than a jail cell but smaller than a mobile home — and will have special permission to ignore city rules requiring newly built apartments to exceed 400 square feet.

At 5 feet 6 inches tall, it’s not surprising the mayor thinks size doesn’t matter.

But could there be more to Nanny Bloomberg’s “Honey, I shrunk the studio” plans?

Bloomberg’s thinking here is obvious: People will be far less likely to buy a Big Gulp if they know the cup won’t fit in their apartment

Despite Mayor Bloomberg’s diminutive size, the Twitterverse suspects he won’t be taking up residence in one of these “cozy” closets.

More “do as I say, not as I do” from New York’s nanny in chief. The Daily News reports that Bloomberg’s “12,500-square-foot upper East Side townhouse is about 40 times as big as the micro units.”

One New Yorker has a counter-proposal for Bloomberg.

Yeah, he’ll get right on that. Just as soon as he stops trying to ban stuff he has no intention of forgoing.

HE dumps salt on almost everything, even saltine crackers. He devours burnt bacon and peanut butter sandwiches. He has a weakness for hot dogs, cheeseburgers, and fried chicken, washing them down with a glass of merlot.

And his snack of choice? Cheez-Its.