Discover sad & wake up lighting at john lewis & partners.Boost moods during darker days with our range of wake up lighting.Below, we've rounded up the best sad lights and sunrise alarm clocks on the block, so you can start every day with a glowing sunrise and serotonin boost, no matter what's going on outsideShould you get a sad lamp instead?Can a sunrise alarm clock help with insomnia?Is it better to wake up to light or sound?With claims that they can boot your circadian rhythm into gear, we've taken a …