There are 87 sleeps (87 days) until January 18 (Monday, January 18, 2027).
There are 87 days until January 18 (Monday, January 18, 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 18. Sleeps are the same as days.
87 sleeps is 12 weeks and 3 sleeps.