There are 175 sleeps (175 days) until April 16 (Friday, April 16, 2027).
There are 175 days until April 16 (Friday, April 16, 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 16. Sleeps are the same as days.
175 sleeps is 25 weeks.