There are 169 sleeps (169 days) until April 10 (Saturday, April 10, 2027).
There are 169 days until April 10 (Saturday, April 10, 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 10. Sleeps are the same as days.
169 sleeps is 24 weeks and 1 sleep.