There are 308 sleeps (308 days) until August 27 (Friday, August 27, 2027).
There are 308 days until August 27 (Friday, August 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 August 27. Sleeps are the same as days.
308 sleeps is 44 weeks.