Domestic cats will sleep in dark or light conditions

My experience with domestic cats tells me that domestic cats can sleep well under light or dark conditions and that they have no particular preference. They don’t seem to seek out dark places to sleep. My cat sleeps under the covers with me in bed at night and on his cat condo at the window in the daytime. The former is pitch black almost and the latter is quite light. I think my cat is very typical of all domestic cats.