Blue Dream is a classic strain that has been around for quite a few years at this point. I mostly use it during the day, but really you could use it at any time. It gave me a nice infusion of energy whenever I smoked or vaped it without being too overpowering like other strains. Over time that heady buzz eventually drops down into the body and provides a very relaxing body buzz that continues on for a couple hours. Overall I'd recommend trying the strain out and seeing how it works for you.