Sleep hygiene means the everyday habits and surroundings that support sleep. For adults, the CDC recommends consistent bed and waking times, a quiet and cool bedroom, avoiding caffeine in the afternoon or evening, and switching off electronic devices at least 30 minutes before bed. These habits can help, but persistent sleeping difficulties deserve a conversation with a qualified doctor.
The useful question is often which part of the day needs changing. Someone who leaves work late faces a different practical problem from someone who lies awake after an evening coffee. A routine should make the official guidance workable in your circumstances, without turning a missed bedtime into another source of worry.
| Part of the routine | CDC guidance |
|---|---|
| Timing | Keep bed and waking times consistent |
| Room | Keep it quiet, relaxing and cool |
| Before bed | Avoid large meals and alcohol |
| Later in the day | Avoid afternoon or evening caffeine |
| Last half hour | Switch off electronic devices |
Sleep hygiene tips for adults: start with timing
The CDC’s About Sleep guidance says to go to bed and get up at the same time every day. For a person with a regular timetable, a practical first step is writing down those intended times and seeing whether meals, work and household responsibilities leave room for them. This is an organisational example, rather than a clinical sleep programme.
Do not judge a routine solely by the time shown on the clock. CDC describes quality sleep as uninterrupted and refreshing. Repeated waking, difficulty falling asleep or continued tiredness despite enough time asleep are reasons to look beyond a simple hours total. Keeping a regular schedule does not rule out a sleep problem.
If your hours change because of work or caring responsibilities, explain that pattern when seeking medical advice. Avoid borrowing a rigid routine from someone whose day looks nothing like yours. The public guidance describes helpful habits; it does not establish an individual timetable for every shift pattern or health condition.
What to change before bedtime
CDC advises avoiding caffeine in the afternoon or evening. That makes the timing of tea and coffee worth recording, rather than only counting cups. The guidance does not provide one universal clock time for everyone’s last drink. A routine can begin with noticing when you usually consume caffeine and comparing that pattern with your sleeping difficulties.
Large meals and alcohol before bedtime are also on the CDC list of things to avoid. This does not mean skipping necessary food or treating alcohol as a sleep aid. The practical task is to examine how the evening meal fits around the intended bedtime, especially when work or travel has pushed dinner later than usual.
For the final 30 minutes before bed, CDC recommends turning off electronic devices. A simple way to apply that instruction is to finish messages and other tasks before the wind-down period begins. The point is to create a workable boundary in the evening, rather than fill that half hour with a complicated set of rules.
Check the room too. CDC recommends a quiet, relaxing space at a cool temperature, without prescribing a single temperature number on this page. In a shared home, consider which sources of disturbance can reasonably be reduced. A conversation about late evening noise may be more useful than buying something marketed as a sleep solution.
How to keep a sleep diary
CDC says a healthcare provider may ask for a sleep diary to understand what is happening. Record when you go to bed, when you wake during the night and when you wake in the morning. Add naps, exercise, alcohol or caffeinated drinks, and when you take medicines. These are observations to share, not instructions to change prescribed medication.
A paper record can be plain. For each day, leave separate spaces for bedtime, overnight waking and the morning. Put the evening’s drinks and activities beside the same entry. Avoid filling a gap with an estimate presented as an exact measurement. If you did not notice a time, mark it as unknown.
The diary’s value is the pattern it helps describe. It can make an appointment more concrete by replacing “I never sleep well” with details about recurring waking, variable schedules or daytime tiredness. It cannot establish a diagnosis on its own, and a single difficult night does not explain the cause of a continuing problem.
When sleep habits are not enough
CDC notes that some health conditions can prevent quality sleep despite a person’s efforts. Speak to a qualified doctor if sleeping problems are regular, or if you remain sleepy or tired after apparently sufficient sleep. If you already have a medical condition, consult a qualified doctor about changes to your routine and any concerns about your sleep.
Regular exercise and a healthy diet are also included in CDC’s advice. For background, read our guides to walking and weekly activity and breaking up long periods of sitting. Our separate adult sleep hours guide explains the age-based duration question. This routine guide follows official information checked on 6 November 2026.
