I know the example given in this situation is of children of affluent parents who, for some unknown reason, sleep on mattresses on the floor. However, there are families where having a bed is something of a luxury. When this happens, it can be really difficult on so many levels.
A close relative had serious financial problems. She was married with two primary aged sons. The family rented a house that, quite frankly, was in a deplorable condition. It was damp, it was cold, and everything seemed to be broken. The landlord was full of promises to repair, but very slow to respond.
Due to the cold and damp, the boys and their mother slept in the living room downstairs. The room was small, but they put a sofa-bed in the room, so the boys could huddle up together for warmth. Mum also slept in the room downstairs , on a bed made of two chairs a sleeping bag. The youngest son had additional needs, and would not sleep without his mum being near. Dad slept upstairs in the least damp bedroom.
The boys worried about friends coming to the house and asking where the beds were, or commenting on other things (cold, mould, the smell and so on). The eldest did invite a friend he trusted around and, unfortunately, the friend decided to gain a few laughs at school by telling the whole class what the house was like. The eldest said nothing, the teacher did nothing, and the friendship ended.
Both boys did not sleep well. Mum had to get up early for work, and that disturbed them, and the living room looked out onto a busy street that was noisy even at night. When they went to secondary school, at least one of the boys would spend lunch break asleep in the sick room with headaches brought on by fatigue. Neither child reached his full potential.
So, I know this is a somewhat light-hearted thread, but I just thought I would beat my drum to say there really are issues with deprivation and poverty in this country, and there really are families where sleeping in a warm bed is a luxury.