Money Worries and Sleep: Why Debt Can Keep You Awake

5 min read · 1 November 2026

Money worries are linked to poor sleep, and poor sleep can make money stress harder to carry. The research shows a link, not proof of cause.

If you lie awake asking “will this ever end?”, you can answer that question with numbers. Debt is maths, not character.

Can money worries affect your sleep?

Yes, they can. The Mental Health Foundation, a UK charity, says that worrying about debt can affect your sleep.

The NHS says the most common causes of insomnia include stress, anxiety or depression. So the link makes sense. But it is a link, not a rule. Many things affect sleep, and money is only one of them.

What does the research say?

In 2025, two researchers (Chai and Lu) published a study in the Journal of Affective Disorders. They used a large UK household survey. It followed 34,156 people across four rounds, from 2012 to 2022.

They looked at financial strain, which is wider than debt alone. They found that financial strain went with worsening mental health. Sleep problems were part of that path, and they made the effect stronger.

The authors are careful. They say the study “could not eliminate the possibility of reverse causality”. In plain words, poorer mental health could also affect money strain or sleep. The arrows may point both ways.

The Mental Health Foundation adds a second step. It says a poor night’s sleep can affect your mood and energy, and your ability to work or keep good relationships. It says all of these can add to a debt problem.

What does the 2am worry look like with numbers?

A worry at night is often one big question with no answer. Here is one worry, answered.

Say you owe €3,000 on a card at 21.71% a year. Your minimum is €50. The question is: “Will this ever end?”

Step 1. Monthly rate: 21.71 ÷ 12 = 1.81% a month.

Step 2. Interest in month 1: 3,000 × 0.0181 = about €54.

Step 3. You pay €50. That is €4 less than the interest. After 12 months of paying €50, you owe about €3,057.

So at €50 a month, the honest answer is: not at this payment. That tells you the plan needs to change. It does not tell you that you have failed.

Now the useful part. To find a payment that ends the debt in a set time, use this in words: payment equals the balance times the monthly rate, divided by one minus (one plus the monthly rate) raised to the power of minus the number of months.

Monthly payment	Debt-free in	Total interest
€50	Never (balance grows)	Keeps growing
€115	36 months	€1,108
€156	24 months	€725
€281	12 months	€364

Nada's Never ends screen for a €3,000 card with a €50 minimum: payments of €281, €156 or €115 clear it in 12, 24 or 36 months. — The same menu in Nada (sample data): three payments, three end dates.

Payments are rounded up to the next euro. Interest totals are from the exact payment.

Your 2am question now has a menu of answers, and each one has an end date. You can pick the one that fits your month. For the full story, see why the minimum payment keeps you in debt and the “never ends” trap.

What can you do when the worry starts at night?

These tips come from the NHS:

Write your worries down. The NHS says talking to someone you trust, or writing down your worries, can help you manage them.
Make a list for tomorrow. If you often worry in bed, the NHS suggests listing what you need to do the next day before you go to sleep.
Keep a calm bedtime routine. The NHS suggests reading, meditation, breathing exercises or calming music.
Put screens away. The NHS says to try not to use phones, tablets or computers for an hour before bed.
Don’t lie there fighting it. If you are still awake after about 20 minutes, the NHS says to get up and do something relaxing somewhere else.

The NHS also says insomnia usually gets better by changing your sleeping habits.

When should you see a doctor?

The NHS says to see a doctor if changing your sleep habits has not helped, if you have had trouble sleeping for months, or if poor sleep affects your daily life. Talk to a doctor where you live. This post cannot diagnose or treat anything.

For more steps you can take in the daytime, see how to lower debt stress this week, and how to talk about debt with someone you trust. For the wider picture, read can debt cause anxiety?

Do this today (10 minutes)

Write your worry as one question, for example: “When will this card be paid off?”

Find your balance, yearly rate and minimum. Work out this month’s interest: balance × yearly rate ÷ 12. Is your minimum bigger?

Tonight, before bed, write a short list of what you need to do tomorrow. Put one money step on it.

Nada does this maths for you. Add your debts, see your payoff date, and track each payment. It has no accounts, no ads and no tracking. Get Nada

FAQ

Can money worries affect your sleep? Yes. The Mental Health Foundation says worrying about debt can affect your sleep, and the NHS lists stress, anxiety or depression among the most common causes of insomnia. The research shows a link, not proof that money is the only cause. Other things can affect sleep too.

Can poor sleep make money problems harder? The Mental Health Foundation says a poor night’s sleep can affect your mood, energy, work and relationships, and that these can add to a debt problem. A 2025 UK study also found sleep problems made the link between financial strain and poorer mental health stronger.

What can I do if I worry about money in bed? The NHS suggests writing down your worries, or making a list of what you need to do tomorrow before you sleep. It also suggests a calm bedtime routine, and no phones, tablets or computers for an hour before bed. If you are awake after about 20 minutes, get up and do something relaxing somewhere else.

When should I see a doctor about poor sleep? The NHS says to see a doctor if changing your sleep habits has not helped, if you have had trouble sleeping for months, or if poor sleep affects your daily life. A doctor can talk through the options. This post cannot diagnose or treat sleep problems.

Sources

Read in November 2026. The NHS insomnia page was last reviewed 19 March 2024. The NHS sleep tips page was last updated 15 September 2026. The Mental Health Foundation page was last updated 10 August 2021. The study was published in May 2025.

Written by the Nada team. Reviewed October 2026.

This is general information, not personal advice.

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