Daylight Savings Time and Sleep: How to Protect Your Rest When the Clocks Spring Forward

Twice a year, we change the clocks, and expect our bodies to just go along with it.

On the second Sunday in March, we “spring forward” and lose an hour of sleep overnight. On the first Sunday in November, we “fall back” and gain one. On paper, it sounds simple. In real life, it often feels anything but.

For many people, daylight savings time brings:

• Trouble falling asleep

• Heightened sleep anxiety

• Waking up earlier than usual

• Feeling tired but wired

• A sense that sleep suddenly feels more fragile

If you already struggle with insomnia or easily disrupted sleep, these clock changes can feel especially hard.

The good news? When you understand why daylight savings time affects sleep, and how to work with your biology, you can protect your rest through both transitions.

The Two Powerful Systems That Control Your Sleep

Your sleep is guided by two key systems that work together every day:

1. Your Circadian Rhythm (Your Internal Clock)

This is your body’s 24-hour timing system. It’s strongly influenced by light and darkness, telling your brain when it’s time to be alert and when it’s time to wind down.

2. Your Sleep Drive

This is the pressure that builds the longer you’re awake. The more time you spend awake during the day, the stronger your drive to sleep at night.

Daylight savings time disrupts both systems at once, especially in the spring, by shifting when light hits your eyes and when your schedule tells your brain it’s “supposed” to sleep.

“Spring Forward”: Why Losing One Hour Feels Like More

When the clocks move forward in March, your body doesn’t magically adjust overnight.

You’re suddenly expected to:

• Fall asleep earlier than your brain is ready for

• Wake up earlier with less morning light

• Function on slightly less sleep

Even one hour can be enough to throw off sleep for days, or it can take even longer to recover if your sleep system is already sensitive.

How to Prepare for the Spring Time Change (Starting Now)

You don’t need to do everything perfectly. Small, intentional shifts can make a meaningful difference.

1. Gradually Adjust Your Schedule

About 3-5 days before the time change, start shifting your routine earlier by 10–15 minutes per day:

• Wake-up time

• Bedtime

• Meals (especially dinner)

• Caffeine timing

Helpful guidelines:

• Aim to finish dinner at least 2–3 hours before bedtime

• Stop caffeine 8–10 hours before bed (earlier if you’re sensitive)

• Try light exercise like a brisk 10-minute walk and time outside instead of reaching for caffeine if you experience an energy lull in the mid-afternoon

These small shifts help your circadian rhythm adjust gradually instead of being jolted overnight.

2. Use Light Strategically

Light is the strongest signal your brain uses to set your internal clock.

• Get bright natural light in the morning, ideally within the first hour of waking

• In the evening, start dimming lights and avoiding unnecessary brightness

• If you need or enjoy being on screens at night, consider amber glasses that block bright light and mimic sunset tones; helping your body start producing melatonin naturally

(We share some of our favourite amber glasses in the Sleep Works Amazon store.)

This isn’t about blocking “blue light”, it’s about dimming overall brightness and signalling it’s time for the end of day wind-down. Your brain responds to the intensity, not colour.

3. Protect Your Wake-Up Time (and Nap Carefully)

It’s tempting to sleep in when you feel tired, but consistency matters more than catching up.

• Keep your wake-up time steady, even if sleep feels lighter for a few days

• If you must nap:

  • Keep it under 20–30 minutes

  • Take it before 4:00 p.m.

  • If you are feeling tired and tempted to lay in bed, be sure to set your alarm to avoid an accidental long nap

Long or late naps reduce sleep drive and can make falling asleep at night harder, especially during transitions.

4. Follow the 20/20 Rule at Night

If you’re lying awake feeling frustrated, watching the clock, or worrying about sleep; try the 20/20 rule.

• If you don’t fall asleep within about 20 minutes, get out of bed

• Do something calm and low-stimulation in dim or no light (or using amber-lense glasses)

• Return to bed when you feel sleepy again

This helps retrain your brain to associate your bed with sleep, not stress.

When the Clocks “Fall Back” in November

In November, we gain an hour, and that can cause its own issues.

Common pitfalls:

• Staying up an extra hour “because we can”

• Getting sleepy too early in the evening

• Waking up much earlier than desired

Why staying up late isn’t the best idea:

Your circadian rhythm doesn’t know the clocks changed. Pushing bedtime later often leads to early morning awakenings and fragmented sleep.

The same principles apply:

• Keep your wake-up time consistent

• Use morning light to anchor your day

• Resist the urge to dramatically shift your schedule

When Time Changes Reveal a Bigger Sleep Issue

For some people, daylight savings time is just annoying.

For others, it’s revealing.

If you notice:

• You worry about sleep during the day

• You dread bedtime or feel anxious as night approaches

• Sleep disruptions linger long after the clock change

• Travel, stress, illness, or schedule changes easily derail your sleep

That’s often a sign of chronic insomnia, not just a temporary disruption.

How CBT-I Helps Through Time Changes and Beyond

Cognitive Behavioural Therapy for Insomnia (CBT-I) is the gold-standard, evidence-based treatment for chronic insomnia.

It helps by:

• Stabilizing your circadian rhythm

• Strengthening your sleep drive

• Reducing sleep-related anxiety and overthinking

• Teaching your nervous system that sleep is safe again

At Sleep Works, we offer CBT-I in several formats:

• Virtual group programs, with tailored approaches for ADHD, shift work, chronic pain, menopause/perimenopause, and oncology treatment

• 1:1 support for more complex sleep challenges

• Self-paced online options for flexibility and affordability

Many clients tell us that after CBT-I, things like daylight savings time, stress, or travel no longer knock their sleep off track the way they used to.

Not Sure What’s Keeping You Up? Start With a Free Conversation

If you’re wondering:

• “Is this just daylight savings time, or something more?”

• “Would CBT-I even work for me?”

• “Why does sleep feel so stressful?”

We invite you to book a complimentary 15-minute consultation.

This is not a pressure-filled sales call. It’s a chance to:

• Understand what’s really affecting your sleep

• Ask questions

• Get guidance you can use right away

👉 Book your free 15-minute consultation with Leah and Marlee and let’s figure out what your sleep needs.

Final Thought

Daylight savings time may be unavoidable, but months of poor sleep don’t have to be.

If sleep feels like something you’re constantly managing, worrying about, or bracing for, support is available.

And you don’t have to wait for the “perfect” time to start sleeping better. 🌙