HOTEL ROOM SIZES
Sometimes your hotel room size might come as a surprise. If you are planning to use hotels with ratings with fewer stars rooms can be very small. Most booking sites and hotel websites indicate the size of any particular room on offer, usually in square meters. 30SqM plus is very generous and 20SqM or less is small and 15SqM or less is minute (in my opinion). Smaller rooms tend to have no storage either so if you are travelling with a couple of normal sized suitcases the only place to keep them and access them is on the floor.
If space, tidiness and storage including hanging space is important make a note of the room size, whether it has one large or two beds, (two beds use up more space) and consider how much luggage you are travelling with. I have stayed in a cupboard sized room at NRT for one night before an early am flight but my luggage was waiting for me in the Black Cat depot at the airport so the room was adequate though there was nowhere to sit except to lie on the bed.