There are 123 sleeps (123 days) until February 23 (Tuesday, February 23, 2027).
There are 123 days until February 23 (Tuesday, February 23, 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 February 23. Sleeps are the same as days.
123 sleeps is 17 weeks and 4 sleeps.