I usually recall 3 dreams per night though on occasions 4! That really surprised me when I was filling in my DJ as I wouldn't have thought it possible. However, not all of them are particularly clear. Just occasionally I can only recall 2 but this is almost as rare as having 4, so I suppose it averages out at three per night.

I found that if I am very tired I may only have one. long dream; preseumeably because my sleep is not interrupted.