Cuddling is not necessary to me...Cuddling all night long is so uncomfortable and I am not a huge fan. Also, I'd prefer to just go grab food or something after sex then lay around because it is kind of just boring, unless we are watching a movie or something...But ya, all in all, I prefer as little cuddling as possible...

I'd say it depends on the situation. If it is late at night and the couple is use to sleep at the other person's place, feel free to cuddle all night...
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I do think it is important to cuddle or have some kind of contact after having sex because it is a great feeling of relaxation and security. Often if there isn't any type of contact like cuddling then the sex is purely based on physical want rather than an emotional and physical connection...
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-Matt..

My boyfriend and I cuddle like mad dogs...

I like to cuddle for a little while after sex but when it is time to sleep, get on your side of the bed!!!..