We did an evening EMH at MK last year and we all loved it. MK was open until 3 am and we managed to stay until about 2 am. That does include my 2 kids who were 11 and 3 at the time. Riding BTMRR at 1:30 in the morning was so fun and my kids had a blast. Now before anyone thinks I'm horrible for letting my 3 year old stay up so late, we all took very long naps in the afternoon and all slept in late the next day. I do remember saying to my DH that I don't think we're getting parent of the year awards but oh well, we had fun. At home my kids are on a schedule but that always changes when we're on vacation.