There are only 8 'flushes' of digits on a clock showing all the same number.
What are the odds on seeing even one of those in a night?
In the last week I have woken up to 0.00, 2.22, 4.44 (once with 5.55 same night), 5.55 3 times (once with 2.22 same night), 22.22.
Doesn't prove much but.......!!