There are 39 sleeps (39 days) until December 1 (Tuesday, December 1, 2026).
There are 39 days until December 1 (Tuesday, December 1, 2026) — 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 December 1. Sleeps are the same as days.
39 sleeps is 5 weeks and 4 sleeps.