Always used to be the way Jonathan.
The one that used to get me was the cold...... Go into a party in top and jeans as never wanted to loose a jacket/coat, dance all night and get drenched with sweat of my own and other peoples with indoor rain only to come out 6am, bright daylight and fooking freezing!! Best way of getting over this was to go to another club like Breakfast Club below Astoria or Spatz on Oxford Street which ran until 6pm
Next best either involved sunny summer mornings on the beach (Margate Kent was the best) or getting very pissed on cheap whisky and getting to know intimately a young lady met the night before.
I also liked the Ibiza way in the early 90's, dont worry if its night or day, just party. Madest party I went to was The Living Dream in Skegness 1992, 4 days, 3 nights of utter madness at a Butlins camp with approx 10 parties constantly ongoing with 100's of top top dj's, swimming pools etc etc.
S