Wikipedia
Microstays refers to occupying residency in a hotel room for less than a day. Although a relatively new term in the Western travel industry, it emerged as a trend in the World Travel Market Global Trends Report 2013. Day-use rooms became more popular in Europe during a time of recession when fewer people were travelling and hotels needed other sources of income. Microstays provide a way for hoteliers to boost revenues, as they can increase room inventories by selling the same room twice in a day.
Whilst the UK and the US are the most advanced in adopting microstays, it is fast growing in popularity worldwide. Business travellers make up the majority of the customer base. This system also allows tourists and those taking day trips to take a break at a hotel without paying for overnight accommodation.