I'm a night shift nurse and sleep is always a priority.  I'd been using a fan but it's cold and I don't want a fan running.  I really like the white noise option. The sound is good given how small it is.  The flute is relaxing but it keeps repeating so it's good for me short term. The birds - forget it.  Its too chirpy. The rain sound is really nice but then it thunders, which is a sound change and I'd rather just hear rain. An ocean sound would be nice too.  Anyway,  I like it and when I do wake up, I go right back to sleep.