There are 186 sleeps (186 days) until April 27 (Tuesday, April 27, 2027).
There are 186 days until April 27 (Tuesday, April 27, 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 27. Sleeps are the same as days.
186 sleeps is 26 weeks and 4 sleeps.