22 year old girl, looking for accommodation in Bremen

Hello; I am loooking for a normal room with a bed and where can I put my staff. I am going to live in this room from 9th of augst until 31st augst (it's arround 3 weeks for studing in summer school). I want to share this room with my friend all along this period. It will be nice if there will be tow simple bad in that room. If there's not it's okay with one double bad. It's normal for us to have a shared kitchen and toilette with others. I just want you to know that we have no pet and we don't smoke. Thank you for any assistance you can provide.