There are 266 sleeps (266 days) until July 16 (Friday, July 16, 2027).
There are 266 days until July 16 (Friday, July 16, 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 16. Sleeps are the same as days.
266 sleeps is 38 weeks.