pls help !

Hare krishna prabhuji,
1)I wanted to know that do we have to observe krishna paksha ekadashis also?People often say that we should not observe ekadashis that fall in krishna paksh.What is the fact behind it and pls tell me whether I should observe these krishna paksh ekadashis.
2)My second question is that should we stay awake all night on ekadashis compulsorily?Is it okay if we dont stay awake? Will the observance go wrong or become invalid or incorrect or impure if we do not stay awake and sleep the entire night on ekadshis?
Thank you.
1)I wanted to know that do we have to observe krishna paksha ekadashis also?People often say that we should not observe ekadashis that fall in krishna paksh.What is the fact behind it and pls tell me whether I should observe these krishna paksh ekadashis.
2)My second question is that should we stay awake all night on ekadashis compulsorily?Is it okay if we dont stay awake? Will the observance go wrong or become invalid or incorrect or impure if we do not stay awake and sleep the entire night on ekadshis?
Thank you.