Why Allergies Make You Tired and What Helps

Why Allergies Make You Tired and What Helps

A stuffy nose can leave you tired the next day even when you went to bed on time. Allergies can disrupt your rest, and some allergy medicines can add drowsiness to the mix.

Key takeaways

  • Congestion, itching and a runny nose can interrupt sleep and leave you tired during the day.
  • If sleepiness started after an allergy medicine, ask a pharmacist about its ingredients and possible alternatives.
  • A saline rinse can wash out mucus and allergens when nasal symptoms are bothering you.

Can allergies make you tired?

Yes, allergies can make you feel tired through inflammation, interrupted sleep and, sometimes, medication side effects. A blocked or runny nose can make it harder to rest, leaving you drained the next day. Tiredness alone doesn’t tell you whether allergies are the cause.

When you’re allergic to pollen or dust mites, your immune system reacts to them by releasing chemicals that cause inflammation. That response can leave the lining of your nose swollen and interfere with your sleep. The combination can also contribute to the tired, fuzzy-headed feeling associated with allergies.

Start with the nasal symptoms disturbing your rest

If stuffiness or mucus is bothering you at night, a saline rinse can help by flushing mucus and allergens out of your nose. Removing that buildup can ease congestion, making rinsing a useful part of your allergy care alongside any treatment you’ve been advised to use.

With the SinuPulse Elite, you can turn the pressure dial to adjust the saline flow while rinsing at the sink. It’s a practical home option when you want to clear your nose during allergy season.


Prepare the saline with distilled, sterile or previously boiled and cooled water. Drinking-safe tap water can still contain germs that cause an infection when they enter your nose. Mix the saline as directed, and follow the device’s use and cleaning directions.

After rinsing, notice whether mucus clears more easily or your nose feels less blocked.

Could your allergy medicine be making you sleepy?

Some antihistamines, the medicines used for symptoms such as sneezing and itching, can cause drowsiness. Older ingredients such as diphenhydramine are more likely to do this; newer options tend to cause less sleepiness, though your response can vary.

If you started feeling sleepy after taking a medicine, check its active ingredient and drowsiness warning. Ask a pharmacist whether a less-drowsy option would suit your symptoms and other medicines before switching. Follow the label’s driving precautions if it makes you sleepy.

If tiredness persists or keeps interfering with your day as your allergy symptoms settle, make an appointment with your primary care clinician. Ask whether your medicines or another cause could explain it.

Give your bedroom fewer allergy triggers

Reducing exposure to what you’re allergic to can help limit the symptoms that interrupt sleep. For pollen allergies, close bedroom windows when pollen levels are high and dry bedding indoors so pollen doesn’t settle on it.

If dust mites are a known trigger, use allergy-proof mattress and pillow covers and wash bedding weekly. If you’re allergic to pets, keeping them out of the bedroom can reduce exposure where you sleep. These changes target the allergens causing your symptoms, so choose the ones that match your allergies.

For example, if pollen is your trigger and you go to bed with a mucus-filled nose, closing the windows and rinsing address two different problems: pollen coming into the room and buildup already in your nose.

If mucus and stuffiness are making your allergy nights uncomfortable, choose SinuPulse Elite for your home rinse routine.

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