Reading before bed can help you sleep, especially when it is a printed book or e-ink reader in dim, warm light. It gives a busy mind a quiet place to settle and creates a predictable signal that the day is ending. What matters most is the format and the light: research shows that reading on a bright, backlit screen can delay sleep, while a paper book does not carry the same effect.
So the habit is worth keeping, with a few small adjustments that make it work better.
Why does reading before bed help you sleep?
Falling asleep is less about switching off and more about winding down. Your body needs a gradual shift from alert and engaged to quiet and drowsy, and that shift is easier when your attention has somewhere calm to rest.
Reading does three useful things at once. It pulls your attention away from the replay of the day and tomorrow’s to-do list, which is often what keeps people awake (we cover that loop in how to stop racing thoughts at night). It is low effort physically, so you are already lying still and relaxed. And done at the same time each night, it becomes a cue: your brain learns that the book in your hand means sleep is close.
That cue matters more than it sounds. Repeated, predictable routines are one of the most reliable ways to make falling asleep feel easier, which is why reading so often appears as part of a bedtime routine for adults.
Is it better to read a book or an e-reader before bed?
A printed book, or an e-ink reader without a bright backlight, is the better choice. The clearest evidence comes from a 2015 study in PNAS by Chang and colleagues. Adults in a controlled laboratory read either a printed book or a light-emitting tablet for about four hours before bed on several evenings. When reading on the tablet, they took longer to fall asleep, had suppressed and delayed evening melatonin, spent less time in REM sleep and felt less alert the next morning, compared with reading the printed book.
The likely reason is light. Bright, short-wavelength light from screens tells your body clock it is still daytime, which pushes back the evening rise in melatonin. Our posts on blue light and sleep and light at night and sleep explain that relationship in more detail.
If you love your e-reader, there are gentle options. Simple e-ink readers without a bright backlight behave much more like paper. If yours has a front light, keeping it at its lowest comfortable setting and using any warm-light option is a reasonable compromise.
Is reading on your phone before bed bad for sleep?
It tends to be less helpful than a book, for more than one reason. Phones add bright light, but they also add notifications, messages and content that never runs out. It is easy to start with an article and end up twenty minutes deep in something that has woken you up.
In a survey of 844 adults, Exelmans and Van den Bulck (2016, Social Science & Medicine) found that using a phone in bed after lights out was associated with poorer sleep quality, longer time to fall asleep, more insomnia symptoms and more daytime fatigue. It was a survey, so it shows a link rather than proof of cause, but it fits with what many people notice in their own evenings.
If the phone is your only option, turning on night mode, lowering brightness, silencing notifications and choosing a reading app rather than social feeds can soften its effect. If you notice you are staying up late on your phone because the evening is the only time that feels like your own, revenge bedtime procrastination might sound familiar.
For new parents: reading when every minute counts
When you are caring for a baby, reading before bed can feel like a luxury you cannot afford. If you have a short window to sleep, it is perfectly reasonable to skip the book and go straight to sleep. Reading is a tool for winding down, and if you are exhausted enough to fall asleep the moment your head touches the pillow, you may not need it.
Where reading often earns its place for new parents is in the bedtime routine for your child. In a study of 405 mothers and their infants and toddlers, Mindell and colleagues (2009, Sleep) found that introducing a consistent nightly routine, which included a bath, a massage and quiet activities like cuddling or a lullaby, led to children falling asleep faster and waking less often during the night. Mothers’ mood improved too. Reading a short book together can be a calm, predictable part of that kind of routine as your child grows.
During night feeds, a phone is often the easiest thing to reach for. If you want to read, a dim, warm light and a paper book or e-ink reader may make it easier to get back to sleep afterwards than a bright screen.
For perimenopause: reading when you wake early
Perimenopause often brings a particular kind of wakefulness: waking at 4 or 5 a.m., sometimes after a hot flash, and lying there unable to drift off again. Reading can help in two ways.
In the evening, a regular reading wind-down gives a steady anchor during a time when sleep can feel unpredictable from night to night.
In the early morning, if you have been awake for a while and are starting to feel frustrated, getting up and reading something calm in dim light is part of a technique called stimulus control. It is one piece of cognitive behavioural therapy for insomnia (CBT-I). The idea is to stop your bed becoming linked with frustration and wakefulness: you leave the bed, do something quiet until you feel sleepy, then return. The American Academy of Sleep Medicine’s 2021 clinical practice guideline (Edinger et al., Journal of Clinical Sleep Medicine) suggests stimulus control for adults with chronic insomnia. If early waking is becoming a pattern, our post on waking up too early looks at why it happens and what helps, and perimenopause and sleep covers the broader picture.
What should you read before bed?
Choose something that interests you but does not grip you. A gentle novel you have read before, short essays, poetry, nature writing or a slow biography all tend to work well.
The books that work less well are the ones designed to keep you turning pages: tense thrillers, work documents, the news or anything that triggers worry or planning. If you notice you are reading faster, sitting up or thinking “just one more chapter”, the book is working against you, not for you.
How to make reading before bed work for you
- Use dim, warm light. A bedside lamp with a warm bulb is gentler than overhead lighting.
- Prefer paper or e-ink. If you use a tablet or phone, lower the brightness and use night mode.
- Keep it consistent. Reading at roughly the same time each night builds the cue.
- Stop when you feel sleepy. The goal is drowsiness, not finishing the chapter.
- Keep work and worries out of it. Save emails, news and planning for the daytime.
The calm version
Reading before bed is one of the simplest, kindest habits you can build, as long as the light is gentle and the book is calm. A paper book in warm light helps your mind settle, while a bright screen can quietly push sleep later. Mendtide’s morning briefing reads your Apple Health sleep data, so over a few weeks you can see whether nights with a calmer wind-down tend to start more easily for you.
A few quiet pages are not a cure for every hard night. They are a soft place for the day to end.