On about the fourth time waking up, I thought I felt a poke on the heel of my foot, which is what woke me. I rolled over and looked around the room, but nothing was out of the ordinary.

在我第四次醒来时，觉得好像脚跟被戳了一下，接着我就醒了，我翻过身来，打量了一下房间，没发现什么异常的。