I have a spare room in my apartment set up as a sleep room or somewhere to relax and watch tv depending on the preference of the guest there is of course a kitchen, dinning area, living room and a little play area down stairs. My children and i visit these areas as well but guest are welcome as well.
Neibirhood is calm there is a road that has more traffic than others close by but it is not noisy
Preferably you have your vehicle or a rental. There are taxis and uber available but the pricing can be steep depending on your destination. If your staying in redmond most places are walking distance…