There are 218 sleeps (218 days) until May 29 (Saturday, May 29, 2027).
There are 218 days until May 29 (Saturday, May 29, 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 29. Sleeps are the same as days.
218 sleeps is 31 weeks and 1 sleep.