There are 206 sleeps (206 days) until May 17 (Monday, May 17, 2027).
There are 206 days until May 17 (Monday, May 17, 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 May 17. Sleeps are the same as days.
206 sleeps is 29 weeks and 3 sleeps.