Woman awake in bed at night

Is Hay Fever Worse at Night? Why Symptoms Flare After Dark

If you spend your days feeling relatively fine only for your nose to block up and your eyes to start streaming the moment you get into bed, you are not alone. Night-time is one of the most common times for hay fever symptoms to flare, and there are some clear reasons why.

Why Symptoms Pick Up in the Evening

  • Pollen collects on you throughout the day. Every time you step outside, pollen settles in your hair, on your skin and on your clothes. By the time you get into bed, you are effectively bringing a day's worth of pollen exposure with you, right next to your face for several hours.
  • Pollen counts often rise again in the evening. After peaking in the morning, pollen released earlier in the day can settle back down closer to ground level as the air cools in the evening, creating a second wave of exposure right around bedtime.
  • Lying down changes how you breathe. A horizontal position increases blood flow to the nasal passages, which can make existing congestion feel considerably worse than it did while you were upright and active during the day.
  • There are fewer distractions at night. During a busy day, it is easy to not notice mild symptoms. Once you are lying quietly in the dark, a blocked nose or itchy throat becomes much harder to ignore.

Bedroom Habits That Make a Real Difference

You cannot eliminate pollen exposure entirely, but a few changes to your evening routine can noticeably reduce how disruptive it is.

  • Shower before bed rather than in the morning, to rinse the day's pollen from your hair and skin before it transfers to your pillow.
  • Keep bedroom windows closed overnight, particularly during the early evening when pollen tends to settle.
  • Wash bedding regularly at a high temperature to remove any pollen that has built up over the week.
  • Change out of outdoor clothes as soon as you get home, rather than wearing them around the house into the evening.
  • Consider a HEPA air purifier for the bedroom specifically, since this is where you spend the longest uninterrupted stretch of time.

Protecting Your Sleep

Hay fever that consistently disrupts your sleep is worth taking seriously, since poor sleep has a knock-on effect on energy, concentration and mood the following day. If evening symptoms are severe or your usual antihistamine is not covering you through the night, it is worth speaking to your pharmacist about timing your medication differently or trying a longer-acting option.

Healthy living starts with the breath. Join the Respahealth list at the bottom of this page for pollen-season updates and first access to the 2027 Season Pack.

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This article is general information, not medical advice. If your symptoms are getting worse or not settling, speak to a pharmacist or your GP.

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