Echoing what everyone else has said - that baby needs stimulation, routine, fresh air and potentially seeing by a Doctor if it's all day everyday.
Maybe she's crying because she's bored, or uncomfortable in the swing of dreams?
Also, surely at almost 8 months(?) she should be napping elsewhere, like in her cot upstairs or is that just me? I remember putting my Daughter upstairs to nap from about 6m old, with a video monitor (we all know she has one of them) and then she got used to and a separation between bed time, and awake time etc.
At 8m my Daughter went to Nursery and we had to fill in a form with her routine, nap times, feeding times etc.