How Do You Sleep Well During the Day?
Daytime sleep works against your body’s natural clock, which is why shift workers and night-shift nurses often struggle to get enough rest. Federal occupational health guidance from the National Institute for Occupational Safety and Health (NIOSH), part of the CDC, points to one main fix: make your bedroom as dark, quiet, and cool as possible, no matter what time it is outside. This guide covers the specific adjustments that matter most when you’re sleeping on a schedule that doesn’t match daylight hours.
Safety Note Before You Start
If drowsiness during your commute home is a regular problem, treat it as a safety issue first. NIOSH guidance notes that using dark sunglasses to block morning light after a night shift should only be done when someone else is driving, since the glasses can also increase sleepiness and raise the risk of drowsy driving. If you’re regularly too sleepy to drive safely after a shift, talk with your employer or a healthcare provider about safer commute options before focusing on bedroom setup.
Blocking Light for Daytime Sleep
Light is the strongest signal your body uses to decide when to be awake, which makes it the biggest obstacle to sleeping during the day. NIOSH recommends making your bedroom very dark whether you’re sleeping at night or during daylight hours.
- Use room-darkening shades or heavy, lined draperies instead of blinds, which let more light filter through.
- Block light gaps around window edges and under the bedroom door.
- Wear an eye mask if you can’t fully darken the room.
- If you’re heading home after a night shift, dark sunglasses on the way home can help prevent morning light from triggering your body’s daytime-alerting response — but only wear them when someone else is driving, per the safety note above.
- Use a dim red nightlight for bathroom trips instead of switching on a bright overhead light.
Timing Sleep to Fit Your Schedule
Your body’s internal clock works best with a consistent wake time, even when that time falls in the middle of the day. NIOSH training materials for shift workers describe a few practical approaches.
- Sleep as soon as possible after your shift ends, and sleep as long as your body allows.
- If you work a rotating schedule, anchor part of your sleep window to the same hours every day — for example, keeping a stretch like 8 a.m. to noon as sleep time on both workdays and days off — so your body always has some consistent sleep hours in each 24-hour period.
- Avoid staying awake for extended stretches before your first night shift or after your last one in a block, as this increases the risk of short-term accidents and adds to sleep debt over time.
- If you need to catch up on lost sleep, going to bed earlier while keeping the same wake time works better than sleeping in.
Managing Noise and Household Disruptions
A daytime sleeper is fighting against a world that’s awake and active. NIOSH guidance suggests treating noise control as seriously as light control.
- Use earplugs or a fan or white-noise machine to mask traffic, household activity, and other noise sources.
- Ask family members or roommates not to enter your bedroom or make noise near it during your sleep hours.
- Set your phone to do-not-disturb, allowing only emergency contacts through, and turn off notifications for non-essential apps.
- Train pets to stay out of the bedroom during your sleep window if they tend to wake you.
Temperature and Mattress Basics for Daytime Sleep
Daytime rooms often run warmer than nighttime ones, especially with sunlight coming through windows or curtains. NIOSH lists a cool bedroom as part of a good sleep setup, with covers added if needed to stay warm rather than relying on a warmer room temperature.
- Keep the room cool and add blankets if you get cold, rather than warming the room itself.
- Use the bedroom mainly for sleep rather than other activities like watching TV or working, so your brain associates the space with rest.
- Watch for signs your mattress needs replacing — creaking, lumps, a body-shaped depression, or waking up stiff are the practical signals NIOSH points to, more useful than a marketed firmness number.
- Replace pillows periodically, since they lose support and accumulate dust mites over time.
Using Light Strategically When You’re Awake
Light exposure during your waking hours matters too, not just during sleep. NIOSH guidance notes that bright light increases alertness, so seeking out bright light — sunlight if you’re on days, or a bright indoor space if you’re working nights — during the parts of your shift when you feel sleepiest can help.
Quick Reference: Daytime Sleep Checklist
- Room-darkening shades or drapes installed, with light gaps at edges and under the door blocked
- Eye mask on hand for backup light-blocking
- Earplugs, a fan, or a white-noise machine in place for consistent background sound
- Phone on do-not-disturb with emergency contacts allowed through
- Consistent sleep-window anchor hours, even on days off
- Family or household members aware of your sleep hours
- Mattress and pillow checked for wear, pain, or stiffness on waking
Evidence Limits
Shift-work sleep research is well established on the basics covered here — darkness, noise control, and consistent timing all have strong evidence behind them. Research on tools like dark or blue-light-blocking sunglasses is more limited: NIOSH notes some researchers recommend them for the commute home, while others flag that they can also raise drowsy-driving risk. Individual responses to light exposure and schedule anchoring vary, and no environmental change fully offsets the health effects linked to long-term shift work.
Who Should Take Extra Care
People managing a heart condition, diabetes, or a pregnancy should talk with a healthcare provider about how shift work and daytime sleep affect their specific situation, since these adjustments are general guidance and not tailored medical advice. Anyone experiencing ongoing excessive sleepiness, especially while driving, should treat that as a safety concern to raise with a doctor or their employer rather than something to manage through bedroom changes alone.
When to Talk to a Healthcare Provider
Environmental changes can meaningfully improve daytime sleep, but persistent problems deserve a closer look. Talk with a healthcare provider if you regularly struggle to fall or stay asleep despite a dark, quiet room, if you feel excessively sleepy during your shift or commute, or if you notice symptoms that could point to a sleep disorder. These signs can sometimes indicate shift work sleep disorder or another condition that benefits from proper evaluation. Our guide to general sleep environment optimization and our overview of sleep hygiene and supplements cover additional evidence-based approaches worth discussing with a provider.
Frequently Asked Questions
Do I really need blackout curtains, or will blinds work?
NIOSH guidance specifically notes that blinds tend to let more light through than people expect. Room-darkening shades or heavy, lined drapery are recommended over blinds for daytime sleep, along with sealing light gaps around window edges and under the door.
Should I wear sunglasses on my way home from a night shift?
Some researchers recommend dark sunglasses to reduce morning light exposure and help you sleep better afterward. However, this should only be done when you’re not driving yourself, since the same drowsiness-blocking effect can also increase the risk of drowsy driving.
Is it normal to feel like I never fully adjust to night shifts?
Many rotating and irregular-shift workers don’t fully adapt, especially when they switch back to a daytime schedule on their days off. Anchoring part of your sleep schedule to the same hours every day is one strategy shown to ease that back-and-forth, though full adjustment isn’t guaranteed for everyone.
What if my household can’t stay quiet during my sleep hours?
Earplugs, a fan, or a white-noise machine can mask household and outside noise even if you can’t control the source directly. Asking family members and training pets to avoid your bedroom during your sleep window is also part of standard shift-worker sleep guidance.
Educational Disclaimer
This article is for general education only and is not medical advice, a diagnosis, or a treatment recommendation. It does not replace care from a qualified healthcare provider. If you have ongoing sleep problems, excessive daytime sleepiness, or symptoms of a sleep disorder, talk to a doctor or other qualified clinician. For more on general bedroom setup, see our progressive muscle relaxation for sleep or our review of magnesium research for sleep and stress.