I live in Sydney Australia and last night i had to do my yearly sleep study and MWT test in order to keep my truck licence.I don't understand why they call it a sleep study because they do everything they can to stop you from sleeping.I am 130kg and am used to sleeping in a king size bed so having to sleep in a single bed that im scared that when i roll over i will fall out or worse the bed will collapse keeps me on edge all night and the pillows are like putting your head on a bag of cement.To make things worse that heart monitor on your finger that every time you move falls of and they come in with the flash light waking you even more.So then i had to do MWT test which requires you to sit in a dark room for 20min every 2hr for 8 hrs and not fall asleep which after a night like that isn't so easy when all you want to do is sleep may be htey should do that before the sleep study might get more sleep .So i'm crossing my fingers that when i go to the doctors i have slept enough during the sleep study.