There are 73 sleeps (73 days) until January 4 (Monday, January 4, 2027).
There are 73 days until January 4 (Monday, January 4, 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 4. Sleeps are the same as days.
73 sleeps is 10 weeks and 3 sleeps.