Looking at Bedjet as a final solution
Considering 8S vs alternative
So my issue is waking hot around 1am and/or 3am. I have central air and in the summer the night temperature is set to 23c. In the winter it's set to 18c and I sleep cooler but will still find hot nights.
So I'm starting by replacing my mattress with a local pocket spring latex hybrid. This company has really comfortable hybrid mattresses and they're reasonably priced. I'll add a bamboo sheet set. I'm going to turn the thermostat down to 21 at night and see how that goes. Total cost $2,400 Cdn
Assuming the problem persists I'm going to shut the bedroom door and add a Midea Duo 12,000 BTU HE Inverter Ultra Quiet Portable Air Conditioner and feed the hose out the window and set it to 18c at night. The cost to cool the whole house would be crazy high.Total cost $730 Cdn
Assuming that doesn't fix it I'll try the Bedjet system. It will be pushing cold air through the cloud sheet and should work without the risk of leaks, customer service is better and it's basically a fan. Much fewer points of failure. Cost $900
In the end it will cost me less than the 8S for a year and I'll have vastly improved my mattress. What are the weaknesses of this plan?