There are 273 sleeps (273 days) until July 23 (Friday, July 23, 2027).
There are 273 days until July 23 (Friday, July 23, 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 23. Sleeps are the same as days.
273 sleeps is 39 weeks.