Why Am I So Itchy at Night? Common Causes of Nighttime Itching

You're finally in bed, ready to rest, but instead of drifting off to sleep, you're scratching at your arms, legs, or back. Nighttime itching, also called nocturnal pruritus, can be incredibly frustrating and disruptive, turning what should be a peaceful time into a nightly battle with your skin.

So what causes this uncomfortable sensation—and how can you make it stop? Let’s explore the most common culprits behind nighttime itching and what you can do to get relief.

Why Does Itching Get Worse at Night?

Several natural and environmental changes happen at night that can trigger or worsen itching:

• Body temperature rises slightly as part of your circadian rhythm

• Skin loses moisture overnight, leading to dryness

• Fewer distractions make you more aware of the itch

• Hormone levels change, which may increase inflammation or skin sensitivity

Now let’s look at the possible causes.

Dry Skin (Xerosis)

One of the most common reasons for nighttime itching is simply dry skin. It often gets worse at night when your skin loses moisture and is in contact with fabrics or warm bedding.

Common in:

• Cold or dry climates

• People who bathe frequently in hot water

• Aging adults (skin becomes thinner and drier)

What helps:

• Use a thick, fragrance-free moisturizer before bed

• Use a humidifier in your bedroom

• Avoid hot showers right before sleeping

Irritants in Bedding or Laundry Products

You spend hours each night in close contact with your sheets and pajamas, so it’s no surprise that fabric detergents, fabric softeners, or bed materials can irritate sensitive skin.

What helps:

• Switch to hypoallergenic, fragrance-free laundry detergent

• Wash new sheets before using them

• Use breathable fabrics like cotton or bamboo

Allergens or Pests

Dust mites, pet dander, or even bed bugs can contribute to itching at night.

What helps:

• Wash sheets weekly in hot water

• Use dust mite–proof pillow and mattress covers

• Check for signs of pests and clean or replace bedding if needed

Stress and Anxiety

Your mind may quiet down at night, but that’s when stress-related itching can ramp up. Anxiety can increase histamine release and heighten your perception of physical sensations, including itch.

What helps:

• Try relaxation techniques like deep breathing, meditation, or a calming bedtime routine

• Keep a journal to release mental tension before bed

Medications

Certain medications list itching as a side effect, and their effects may peak at night.

Common culprits include:

• Opioids

• Aspirin or NSAIDs

• Some blood pressure medications

• Hormone therapy

What helps:

• Talk to your healthcare provider about alternatives or adjustments

Underlying Health Conditions 

Nighttime itching may be linked to medical issues, especially if it’s persistent or severe.

• Eczema or psoriasis:  Inflammatory skin conditions that worsen at night

• Kidney or liver disease: Can cause toxin buildup that leads to itching

• Thyroid disorders: May change skin sensitivity

• Iron deficiency or anemia: Often associated with generalized itchiness

• Hormonal changes: Like those from pregnancy or menopause

What helps:

• Track symptoms and talk with your doctor for further evaluation

• Treating the underlying condition usually improves the itching

Tips to Stop Nighttime Itching

• Apply a gentle, fragrance-free moisturizer before bed

• Take a lukewarm bath with oatmeal or baking soda

• Wear loose, breathable pajamas

• Keep your bedroom cool and well-ventilated

• Avoid caffeine and alcohol close to bedtime

• Use antihistamines if approved by your doctor

When to See a Doctor

If nighttime itching:

• Lasts more than a couple of weeks

• Is severe or affects your sleep regularly

• Is accompanied by rash, swelling, or pain

• Occurs alongside other symptoms like weight loss or fatigue

…it’s time to consult a healthcare provider. Persistent itching can be a sign of an underlying condition that needs treatment.

Conclusion