>Participants had their sleep monitored during a single night in a sleep laboratory during the 1990s I'm not sure then what I'm supposed to take away from that

>Participants had their sleep monitored during a single night in a sleep laboratory during the 1990s I'm not sure then what I'm supposed to take away from that study (Mail, not NHS). Edit: I also want to include that reducing nicotine was one very large factor in me getting a better night's sleep. I found that due to constant smoking, my blood pressure was basically locked at a high rate for extended periods of time, which eventually caused my heart to palpitate during some nights. Reducing caffeine and lowering my smoking frequency made those issues vanish, and overrall, was a healthy choice to make regardless.