From the only reliable source of Catholic news on the net, Eye of the Tiber:
According to a report out today by the USCCB, some Catholics actually wake up in the middle of the night and go to Holy Hour instead of going right back to sleep and waiting to go some time during the day when they’re not sleeping.
“It was shocking to learn that a very small number of Catholics actually wake up in the middle of the night to go to adoration, or they don’t go to sleep at all until they return from adoration,” said USCCB spokesman Tony Campos. “What’s fascinating is that many of these people signed up for an inconvenient time slot when there were more attractive time slots open to them like 5 or 6 in the evening. It’s one of the oddest things I’ve ever seen.”
When asked to comment Pope Francis said, Who am I to judge?