About Cool Sleep Lab

My July 2024 power bill in Tucson came in at $487. The house is a 1994 single-story with the original HVAC, and by 4 in the morning the bedroom still read 82 degrees on the clip-on thermometer I keep on the nightstand. I had tried fans. I had tried the frozen-pillow trick. I had bought two sets of sheets with names that promised cooling. None of it moved the number on that thermometer.

Cool Sleep Lab is the log of what actually did. Every piece of hardware covered here went through at least 30 nights on my actual bed before anything got written. I track bedroom temperature at 11pm, 2am, and 6am during the test window. I keep the electric bills so I can say whether a gadget moved my cooling costs or just shifted the discomfort to a different hour of the night.

Brian Caldwell's background and the full story of how this started are on the author page.

Quick note on links: most product links on this site are affiliate links. Buy through one, the brand pays a commission, your price stays the same as anywhere else. Every gadget here was tested on my own bed, paid for with my own money, before the write-up happened. Full disclosure on the editorial policy page.