There are 309 sleeps (309 days) until August 28 (Saturday, August 28, 2027).
There are 309 days until August 28 (Saturday, August 28, 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 28. Sleeps are the same as days.
309 sleeps is 44 weeks and 1 sleep.