There are 257 sleeps (257 days) until July 7 (Wednesday, July 7, 2027).
There are 257 days until July 7 (Wednesday, July 7, 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 July 7. Sleeps are the same as days.
257 sleeps is 36 weeks and 5 sleeps.