There are 135 sleeps (135 days) until March 7 (Sunday, March 7, 2027).
There are 135 days until March 7 (Sunday, March 7, 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 7. Sleeps are the same as days.
135 sleeps is 19 weeks and 2 sleeps.