There are 156 sleeps (156 days) until March 28 (Sunday, March 28, 2027).
There are 156 days until March 28 (Sunday, March 28, 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 28. Sleeps are the same as days.
156 sleeps is 22 weeks and 2 sleeps.