It turns out that the color of your baby's nursery could be the reason your baby cries a lot and therefore no one is sleeping.
There is a psychology behind colors -- they have meanings and affect us. The color yellow makes babies cry according to the American Psychological Association as reported by Painters of Louisville. Yellow is cheerful and warm, but it also strains the eyes, gives you energy (which i'm guessing is the opposite of what you want when it's time for sleeping:) and apparently makes the little ones really unhappy. Hmmmm. does this also apply to yellow pajamas, pillow cases and bed sheets too?
At any rate, here are the "safe" colors to paint a baby's room along with meanings: