There are 176 sleeps (176 days) until April 18 (Sunday, April 18, 2027).
There are 176 days until April 18 (Sunday, April 18, 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 18. Sleeps are the same as days.
176 sleeps is 25 weeks and 1 sleep.