Abstract Despite mounting research on job crafting, relatively little attention has been paid to the roles of recovery and sleep in daily job crafting. Drawing on self‐regulation theory, we proposed that overnight recovery experiences (i.e. relaxation and psychological detachment) and sleep quality replenish the self‐regulatory resources necessary for day‐level job crafting. We further isolated feelings of recovery as a self‐regulatory resource that mediates the relationship between overnight recovery experiences and sleep quality and day‐level job crafting. The results of the experience sampling method conducted with 126 employees for 5 consecutive working days revealed that overnight recovery experiences and sleep quality positively affected day‐level promotion‐oriented job crafting through increased feelings of recovery in the morning. However, we found no significant indirect effect of overnight recovery experiences and sleep quality on day‐level prevention‐oriented job crafting. These findings provide novel insights into the roles of recovery experiences and sleep quality in the context of job crafting.