That’s alot of Ask! It would depend on the type of vampire. I did some sunscreen discussion a little while ago. askavampirologist would be better for this question, too. 

^So Claudia has a bed, and it is covered with dolls, but why even have a bed if you don’t plan to sleep in it at all? Oh wait bc sexytiems… not for Claudia tho, she has a bed to hold her doll collection and dead figure drawing models ffs… In the books they sleep in beds, now that there are really good blackout curtains available. 

^In movie!IWTV, Claudia was able to be awake during the daylight, she just couldn’t let it touch her. I don’t think she (or the other Ricean vampires) would have wanted to try to adopt a day/night sleep schedule like a person… even if they physically could, vampires seem to be nocturnal animals and prefer it that way.

Choice is really irrelevant with Book!VC (Ricean) vampires bc they succumb to the Deathsleep; they are physically unable to stay awake during daylight hours. Even in a place like Alaska in which nighttime extends during the winter months, Ricean vampires are still susceptible to a reasonable deathsleep rhythm.

Vampires in other media, like Only Lovers Left Alive for example, do stay awake during the daylight hours if they feel like it, and they do sleep in beds. Are they trying to imitate mortals? Maybe!