The complete darkness is fine for the hamster and you do not need to be worry about that.They are used to living in dark and cramped places where there is little or no light at all.
No because a hamsters eyes can adapt to the dark. Hope I helped
No al hamsters are fine as long as you treat it right it will feel safe and no matter what you will always have feelings for something so cute like that......
No the hamster does not need a nightlight for if you want your hamster to be bright eyed and active than you need it to get some sleep and a nightlight might disturb its sleeping habits.
I don`t now that is what I`m trying to find out.I think they don`t so no I hope not.
Our little BOBO has a night light set on a timer I kick it on around 5 and it kicks off around 1 so she spends most of her time in the dark the light is mainly for us so that we can see her and play with her the light doese not seem to bug her it is a little 3 watt buld so it doese not put out much heat or light she has a little box she sleeps in and I have covered the top with her bedding so this cuts the light down even more