Sorry arms on a bed??? How big is the room ? There are tons of platform beds all can be low profile but I need mor einfo to suggest anything start with the room size , then style and a single bed or what.

Google apartment size furniture.

Thank you - the room size is 11'3" x 8'9". One of the 8'9" walls is entirely closet or entry doors. The other end has an exit door so there is only 5' of wall space under a window to work with. Style = soft contemporary.

Are you looking for a sofa bed?

Maybe think about a bed with storage drawers beneath that can be styled as a daybed

Most that I have found are bulky with high arms, which cuts off the flow of the room which is already super small... so are you thinking a platform bed, with storage drawers and then design with throw pillows?

Thank you but, the opposite wall, that you can't see, is the entrance door and a double sliding door closet.

Why don't you show us?

How about a daybed with a trundle something like this?

Nice! I just found that this morning. I think it can really work!!!

would you have a link

https://www.ikea.com/us/en/p/brimnes-daybed-with-2-drawers-2-mattresses-white-minnesund-firm-s59129874/

Look at the video to see how to install the 2 mattresses.