What is semi gloss and why can't it be used in a bedroom?

I want to know what is semi gloss paint? I was watching clean house comes clean and the designer said that semigloss paint was not good in a bed room and I wanted to know why?What is semi gloss and why can't it be used in a bedroom?
It is a matter of opinion..but a semi gloss paint on the walls will show every little blemish and flaw where as an eggshell or satin finish o the walls wont show as much..flat doesn't wash worth a darn..I personally like a satin wall, andf a semi gloss trimWhat is semi gloss and why can't it be used in a bedroom?
Semi-gloss is halfway between eggshell and gloss paint, halfway between barely shiny and very shiny. You can use it if you want, it's your bedroom, but it tends to show up every little flaw in a wall, and they all have them, and it looks a bit harsh because it's shiny. It looks a bit institutional in a bedroom but it's okay in a kitchen or bathroom though not many people even use it there these days.
im thinking semi-gloss is a step below high gloss. depends on how shiny you want your walls. lowes and home depot usually have a chart that shows you the difference. most of the time its just personal preferance or it might depend on what room your putting it in.


Personally I like a satin finish with semi-gloss or high-gloss trim
I use semi-gloss in the bath because it is more washable...usually satin for the the bedrooms gives a nice finish.