This relaxed and friendly name could be well suited to a company in the travel or transport sectors.
The word "nightero" contains eight letters and three syllables. Three syllable names are used by established brands like Delicious, Vodafone and McDonald's.
Nightero.com is a dot-com domain. Dot com is the most sought after domain extension. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.