There are 165 sleeps (165 days) until April 6 (Tuesday, April 6, 2027).
There are 165 days until April 6 (Tuesday, April 6, 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 6. Sleeps are the same as days.
165 sleeps is 23 weeks and 4 sleeps.