At 10.47 at night, after a day that has taken more than it gave back, someone is lying in bed looking at their phone.

They are not really shopping, but then they see something. It is cheap enough not to feel important. Maybe £8.99. A lipstick. A little lamp. A notebook. Earrings. Something for a hobby they keep meaning to start.

Tap.

Buy.

Something changes. Only slightly, but enough. There is now something coming.

Tuesday has acquired an event.

For the next few days there is an order confirmation, then a dispatch message, maybe a little map showing the parcel getting closer. Then it arrives. The package is opened and there is a small burst of pleasure.

Later, the thing joins all the other things.

Nothing terrible has happened. Nobody needs diagnosing. Nobody has necessarily spent too much money. It was just a small purchase.

But what did they actually buy?

Perhaps, for a few pounds, they bought something to look forward to.

Consumer psychologists have spent years studying behaviour that overlaps with this.

One established idea is compensatory consumption: goods and services can have psychological value as well as practical value, and people can sometimes use consumption to respond to a gap between how they currently feel about themselves and how they would like to feel. A major research review describes products as sometimes providing temporary psychological relief from distress.

That does not mean every impulse purchase hides an emotional problem. Sometimes, though, the thing being bought is doing more than its obvious job, and there is experimental evidence that emotion can affect spending.

In one study using real money and real goods, sad participants who were also highly self-focused were prepared to give up more money to obtain an item. The finding was not that sadness automatically makes everybody spend more; the relationship depended on the person’s level of self-focus.

Another set of three experiments asked a slightly different question: can shopping actually make somebody feel better? The researchers found that making shopping choices could reduce lingering sadness, with restored personal control appearing to be part of the effect.

That is not difficult to understand. Much of adult life consists of things we have to do: work, bills, appointments, cleaning, messages, people needing things from us.

Then a shop asks a completely different question:

What would you like?

For a moment, you choose.

The same idea can appear in very different parts of life.

One person notices that when they are having a bad week, more parcels arrive. Another notices that the worse they feel about themselves, the harder it becomes to be seen without makeup. Someone else realises they buy things when there is nothing else coming up that they are excited about.

None of these behaviours proves unhappiness. Makeup can be fun, art, identity and ritual. People collect things because they love them. A takeaway can simply be a nice dinner.

The interesting moment is when somebody notices a change in their own behaviour. Then a different question becomes possible:

What job is this doing for me?

A salon appointment may provide care; makeup may offer confidence, transformation or protection. A takeaway can provide relief, a parcel anticipation, and something bought for a new hobby a picture of the person we hope to become. A coffee might simply mean ten minutes that feel like our own.

We are not always buying objects. Sometimes we are buying small changes in how we feel.

People have long used food, clothing, possessions, beauty, entertainment and ritual to alter how they feel. What is different now is how little distance there can be between a feeling and a transaction.

Once, wanting something often involved delay. You had to remember it, go somewhere and perhaps wait. You could change your mind on the way.

Now the shop is already with you. Bored on the bus, lonely late at night, exhausted after work or feeling bad about how you look: within seconds, you can be looking at things to buy.

Often you do not even decide to go shopping. Products appear while you are doing something else.

The UK’s Competition and Markets Authority calls the design of these digital environments online choice architecture. Its evidence review describes how the presentation of choices, rankings, defaults, prompts, scarcity claims and other design decisions can alter consumer behaviour. It also examines designs that remove friction in ways that can make poorly considered decisions easier.

Fast, simple online shopping can of course be useful. But it also creates a striking situation.

The shop has moved inside the emotional moment.

The feeling and the possible response can now occur in almost the same place, at almost the same time.

Buying also has some powerful advantages over many other ways of feeling better: it can be immediate, fairly predictable and private. Calling a friend requires the friend to answer. Joining something takes time and energy. A proper break may require money, permission or childcare, and changing an unhappy part of your life could take months.

Buying something can take 30 seconds.

That may help explain why commercial forms of relief fit so easily into ordinary life: they are unusually accessible.

A meal can arrive when you are too tired to cook. A salon gives you an hour when somebody else looks after you. A parcel creates something pleasant in the near future. A little treat can mark the end of a week in which not much else felt like a treat.

We might think of this as compressed recovery: small amounts of care, pleasure, novelty or control, delivered quickly enough to fit into whatever time and energy we have left.

That raises a bigger question. Has our need for this kind of fast recovery grown as everyday life has changed?

We should not assume the answer. Working life was not necessarily easier forty years ago. Family life was not automatically better, community was not equally available to everyone, and modern work cannot simply be blamed for modern consumer behaviour. That history deserves its own investigation.

Still, there is a useful question here. Many non-commercial forms of recovery need time, energy, coordination or other people. Seeing friends requires everybody to be available; making something requires energy; community needs somewhere to go and people to participate; rest needs time in which nothing else has to be done.

Commercial relief often asks for something simpler: money and a few taps.

Perhaps that is part of its power.

It is also why the answer cannot simply be:

Stop buying things.

Sometimes the real solution is not available. A person who needs months away from an exhausting job may still need their wages. Someone who needs companionship cannot order a close friendship. A carer cannot magically create an afternoon with no responsibilities, and someone living somewhere they hate may have no realistic way of moving.

If the underlying problem cannot be fixed, a small pleasure may be one of the few things that can be changed. The £8 parcel might genuinely improve somebody’s week. The salon appointment might be the only time that month when somebody else takes care of them. The takeaway might remove the final task from a day that already contained too many.

There is a difference between repair and relief. Repair changes the problem; relief makes the problem easier to live with for a while. We need both, and sometimes repair is impossible.

Relief still matters.

The difficulty begins when we forget which one we are getting: when relief causes debt, pleasure starts to feel compulsory, cupboards fill with supplies for hobbies we never have time to do, or waiting for the next parcel feels better than owning any of the things that have already arrived.

It can also show up when the worse somebody feels about themselves, the harder they find it to be seen without makeup, or simply when we keep treating a feeling without ever asking what the feeling is.

Perhaps there is something underneath some modern consumption that is quieter than greed: not mass misery, and certainly not everybody secretly depressed, but a low hum of exhaustion, loneliness, too little control, too little time and not enough to look forward to.

A blanket of invisible sadness.

And around those ordinary human feelings sits an enormous marketplace. It can bring us dinner, change how we look, give us an hour of care or put something pleasant on Thursday.

Those things can make life better. But it is worth knowing what we are asking them to do.

So perhaps the useful question before the next little purchase is not:

Do I really need this?

Most of us already know.

Ask:

What am I hoping will feel different when it arrives?