There are 174 sleeps (174 days) until April 15 (Thursday, April 15, 2027).
There are 174 days until April 15 (Thursday, April 15, 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 15. Sleeps are the same as days.
174 sleeps is 24 weeks and 6 sleeps.