There are 168 sleeps (168 days) until April 9 (Friday, April 9, 2027).
There are 168 days until April 9 (Friday, April 9, 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 9. Sleeps are the same as days.
168 sleeps is 24 weeks.