Sleeping at work

The changes I've made aren't really necessary, just make the writing sound slightly more natural.

Sleeping at work

> Today is a very tough day for me at work because I am still nursing my hangover from the party that was thrown by my best friend yesterday, which he decided to throw on the same day he came to town.

I knew that  I would have that terrible hangover again if I went, but I just could not miss it out on it/ could not give the party a miss. Fortunately, my boss has a lot of meetings arranged for today, so I can have a little doze every now and then.

As it happened, my colleague Alexander came into my  the room and found me with my head down on my desk. He was really surprised to see me doing that /like that and asked me what was going on. I told him that I was just trying to catch up on some sleep after yesterday's party, after which/and/  I described to him how the party was in detail. I told him that my best friend and I we first went to a night club with a few of our buddies,  of ours where we danced and drank the night away. Champagne was flowing throughout  the night. out  the everywhere. We had a great time! Later, we decided to call it a night and go home , but when all of a sudden, we noticed hordes of people wearing weird costumes moving going along the streets. in weird costumes. It turned out that there was an event going on, so we decided to  join in  them and went on with having more a lot of fun. We ended up striking up conversations with some out-of-towners  and a guy who knew what was that the event was about. for. Now I feel like I need at least two days to recover. Going to work after such a huge binge-drinking session bender was a terrible mistake. Well, at least my boss will not see me today. / Going to work after going on the all-night bender just the night before was ...