There are 166 sleeps (166 days) until April 7 (Wednesday, April 7, 2027).
There are 166 days until April 7 (Wednesday, April 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 April 7. Sleeps are the same as days.
166 sleeps is 23 weeks and 5 sleeps.