Usually I take her with me to work
But when I'm at school (4-5 hrs) I let her stay in my room... she has my bed, her steps, her bed, toys, food/water, pee pad, etc. I always leave the blinds open or some type of light on, along with the tv just incase she gets bored. She's been doing this since she was about 3 months old... now she's 2 wks away from 6 months!