There are 142 sleeps (142 days) until March 14 (Sunday, March 14, 2027).
There are 142 days until March 14 (Sunday, March 14, 2027) — one sleep per night.
One sleep per night between now and the big day — tonight is the first sleep, and the morning after the last sleep is March 14. Sleeps are the same as days.
142 sleeps is 20 weeks and 2 sleeps.