There are 81 sleeps (81 days) until January 12 (Tuesday, January 12, 2027).
There are 81 days until January 12 (Tuesday, January 12, 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 January 12. Sleeps are the same as days.
81 sleeps is 11 weeks and 4 sleeps.