For myself, I would really like to try the "at home test", as every time I went to a clinic, the setting was way different that what I was used to. During the tests, I would not go to sleep until very late in the evening, compared to falling asleep right away when at home. I feel that this change did effect the outcome. Granted there are quite a few things that can affect your sleep, temperature, humidity, light, noise, smells as well as the mattress. Years ago, I would sleep on a water bed and in the summer months, I would put the sheets over top of the water bed bag liner thus making it cool so the water would drain the heat from my body. I slept like a baby. In the winter months, I would add a sleeping bag over top of the liner, then put the sheets over top of the sleeping bag, making it super cozy. Again, excellent sleep with no heat or cooling issues. Ear plugs also do work for the noise and an eye cover also helps with the light issue. Boy, I really miss that bed!