Sleep Environment Score Calculator

Six self-ratings on a one-to-ten scale are combined into a weighted average and multiplied by ten, giving a score that runs from ten when everything is rated at its worst to a clean hundred when everything is rated ten. The weights are not equal and they are what the score is really about: darkness carries a quarter of the total, noise control and temperature a fifth each, screen-free time before bed fifteen percent, and air quality and mattress condition a tenth apiece. In score terms, one extra point of darkness is worth two and a half points, a point of noise or temperature two points, a point of screen discipline one and a half, and a point of air quality or mattress condition just one. The default profile — darkness seven, noise six, temperature seven, air six, mattress five, screens four — lands on sixty-one, inside the band the tool labels as having room for improvement, with the boundaries for the four ratings sitting at fifty, seventy and eighty-five.

The priority rows work on a different principle, and the distinction matters: they simply pick the two lowest raw ratings and ignore the weights entirely. That is why the default profile nominates screen habits and mattress condition, even though a single point of extra darkness would lift the score further than a point of better mattress. When two areas share the same rating the tie is broken by the fixed order the areas are listed in, so mattress condition outranks screen habits at equal scores. Nothing here measures your room; every input is your own judgement.