There are 155 sleeps (155 days) until March 27 (Saturday, March 27, 2027).
There are 155 days until March 27 (Saturday, March 27, 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 27. Sleeps are the same as days.
155 sleeps is 22 weeks and 1 sleep.