Sleep before and after learning promotes the consolidation of both neutral and emotional information regardless of REM presence

•We tested whether REM sleep benefit emotional memory processing.•We compared daytime naps with and without REM sleep and wakefulness.•Sleep promoted the consolidation of pre-sleep memory regardless of REM.•Sleep fostered the consolidation of post-sleep learning regardless of REM.•Highly arousing pleasant pictures were the least likely to be remembered.