The present disclosure pertains to optimizing sleep score parameters. In one embodiment, a first set of vectors is obtained, where each vector includes parameter values of sleep-related parameters for calculating a sleep score. For each vector of the first set, a correlation value indicating a degree of a correlation between the vector and a user-indicated sleep score associated with a set of parameter values representative of a sleep metric of the user is determined. A second set of vectors is generated based on a first subset and a second subset of the first set of vectors satisfying a first and second criteria, respectively. A correlation value associated with each vector of the second set is determined. For each sleep-related parameter, a parameter value of a given vector of the second set is assigned based on the correlation values associated with the second set.