Your mattress obviously plays a huge role in your sleep quality. The ambient lighting matters too. In its quest to provide a complete sleep solution, Casper has built the Glow Light. Designed to help you fall asleep, it uses warm LEDs cast through a diffuser that gradually darken over time. Its gesture-based controls are ideal for groggy, middle-of-the-night use — flip it over to turn it on, shake it for a dim, downward-cast glow, and twist it to adjust the brightness. They can be linked together, acting as a single system, charge wirelessly, and can be customized via an app with an alarm feature that will wake you up as gradually as it lulled you to sleep.