There are 318 sleeps (318 days) until September 6 (Monday, September 6, 2027).
There are 318 days until September 6 (Monday, September 6, 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 September 6. Sleeps are the same as days.
318 sleeps is 45 weeks and 3 sleeps.