Our charging setup: two Unidapt US to Europe travel power strips, one for each side of the bed. Each has three US outlets, four USB-A ports and a USB-C port on a five-foot cord ending in a European plug, with snap-on heads for EU, UK and US sockets. The European head fit the outlets in both Switzerland and Italy. Paired with an Anker 112W USB-C charger, they kept two iPhones, two Oura rings, an Apple Watch, two pairs of Bose headphones and JBL earbuds charged every night from just two wall sockets. Note: the strip adapts the plug, not the voltage, so everything plugged into its outlets must be dual-voltage (100 to 240V).