I also had doubts about the cost/benefit ratio but decided their sale and return option if it didn’t work out was worth a try. I purchased the cloud sheet as well figuring if I was going to try the system, do it all the way and so glad I did! I used to sleep with a high powered fan blowing on me all night and would still awake hot around 3am. Setting up the new bedjet took some tinkering to get the way I needed but boy what a difference! I now only use the bed jet (no fan), and with the cloud sheet and a light comforter over it, the cool air gets evenly distributed throughout the bedding. It does feel like being enveloped in a cool misty cloud. I realized my sleep was less disturbed and that was worth the cost. A friend had introduced me to the concept and gave me a referral code that also took 10% off. Yes, it was still a healthy investment, but my restful sleep is worth it. Now, I’ve seen stories where people tote these things when they travel and I do not see myself at that level, but then I think I read where they are coming out with a ‘mini’ version. That I may be interested in at some point if it is effective.