I had expected my limbs to feel heavy with exhaustion after our nightly sojourn, solid, weighty relief lowering my eyelids.
Nightly means every night... I think she meant nighttime. also...the 2 halves of this sentence don't match...oh wait they are both her expectations? in the midst of her earlier anxiety, she was imagining how she would feel in bed later? I don't think so. just take this paragraph out

