The study consists of two follow-up periods consisting of two weeks, during which participants will wear the actigraph and complete daily sleep diaries. Participants will travel to the University two times during each follow-up period. One follow-up period will occur immediately following treatment, and the other will occur approximately 6 months following treatment. During each follow-up period, the first visits will involve being connected to the machine that monitors their sleep. Participants will then return home with the machine to sleep in their own beds. The second of these visits will occur the following day and will involve the return of the machine, completion of questionnaires, and measurement of participants' responses to a range of temperatures applied to their arm.