Adding a sunroom to your home is a great idea and it can be enjoyed by everyone who lives there as well as any company that comes to visit. The design you want to choose for your sunroom depends on what you will be doing in it.
You want it to allow you to enjoy the sunlight but what else are you interested in? If you want fresh air then add a screened enclosure so that you can have a cool comfortable temperature in there.
Having a screened sunroom will cost much less than one of glass and you will still get to enjoy the room to relax and enjoy the sun.
You can get many of the benefits found outside without the harm from the sun or dealing with mosquitoes in the evening. You can browse https://www.coversinplay.com/ to get more info about patio enclosures.
Keep in mind that if you only have a screen the rain will be able to get in. Make sure you don't put carpet in the room or furniture that can get ruined or that will allow mold to grow.
If you choose to add windows to your sunroom it will make it more versatile and it will have some advantages over a screened enclosure. This type of sunroom will be more expensive though.
If you plan to have the room is livable then you need to have enclosed windows that you can easily open when the weather permits.
Placing screens behind them will allow you to prevent insects from coming into the room. Make sure the way the sunlight is allowed to come in and how the windows are designed makes it feel as if you are really outdoors.