Window area relative to room size, especially bedroom

Morning light in the bedroom is really a great thing, so I would not want to do without a window facing east, if possible.
As far as the "illumination" of the room is concerned, wide, flat windows, as planned on your east side, are by the way significantly more effective than narrow, tall windows. Especially when they are installed high in the room and not at knee height.

Yes, that is absolutely correct. My wife currently feels the need to change this... because she would like to do without the window above the bed (due to Feng Shui). I would rather keep it, but it may be that this issue always plays a role when one sleeps poorly... but of course we have to sort this out internally.

I find windows or rather the light streaming through them (and sometimes also the view) more beautiful than walls/artificial light, which is why I would always and everywhere vote for as many windows as possible. You can always close a window or limit the view, but adding a window afterwards is more difficult.

Well. I basically understand the approach, but I also know a few houses that didn’t spare any glass, and I wouldn’t want to live in those.

A good, or rather bad example is Mies van der Rohe’s Farnsworth House (if that’s unfamiliar, a quick image search is worth it). Sure, that’s exaggerated. But it illustrates well what I mean:

Quote from Wikipedia by Edith Farnsworth, the resident:

The house is transparent like an X-ray. I wanted something "meaningful," and all I got was this slick subtlety. We know that less is not more. It’s just less. […] The glass-steel construction is uninhabitable. […] Mies talks about open space, but the space is very defined. I can’t even hang a coat hanger in the house without wondering how it changes the view from outside. […] Every rearrangement of furniture becomes a problem.” – Edith Farnsworth

Of course it’s nice to see the surroundings and not feel like you’re in prison in your house. But walls should also provide protection from the outside and keep it at a bit of a distance.

Security and coziness are not created by windows.

I think the classic middle ground is, as so often, a good approach here.

However, in my opinion, the window stinginess in inexpensive buildings is also a plague. But well. Fortunately, everyone can and must decide for themselves what is important to them and what is not.

A reply to the OP: Feel free to leave out the window if the bedroom is only used as a bedroom, that is, for sleeping.

[Update 09:37: Used the wrong quote by mistake]

since she would like to do without the window above the bed (because of Feng Shui)

Definitely! … I can completely understand why someone would want to do without the window behind the bed as well. Exactly because of the background, which Feng Shui argues. Personally, I am basically always in favor of large and many windows. But as a general rule, I would rather approach the topic of "coziness" in the bedroom and at least favor knee-high windows in the bedroom. You haven't written in which direction (height and width) it is about. A narrow one (e.g. patio door) also rather does not bring brightness across the room's width, but rather in height… our 2-meter wide south-facing window, for example, no longer lets the light go under the sloping side of the roof with a room width of over 5 meters.. therefore, I would always want to look at and evaluate it based on a drawing ;)

Thank you for the answer. We have recently been thinking a bit about the planning regarding Feng Shui. It says that a window above the bed should be avoided. Therefore, the question was whether it is also possible to do without the window.

And placing the bed against the other wall is not an option?

Like , I would first ask myself how I can arrange the room differently. Because basically, I would prefer east-facing windows to the south-facing window in the bedroom.