Wearing Contact Lenses While Sleeping: Risks and Safety Tips

Quick Answer

Sleeping in contact lenses—even a short nap—significantly increases the risk of eye infections and corneal damage. The safest practice is to always remove your lenses before sleeping. If you accidentally fall asleep wearing them, remove them as soon as you wake up and give your eyes a break; if you experience pain, redness, or blurry vision, see an eye care professional immediately.

You’ve just settled into bed and realize your contact lenses are still in. Or maybe you’re tempted to keep them in during a quick nap. It’s a common scenario, but the consequences can be serious. Sleeping with contact lenses reduces oxygen to your cornea and traps bacteria against your eye, raising the risk of infection and even ulcers.

Understanding the risks is the first step to protecting your vision. This article breaks down what happens when you sleep in contacts, practical safety tips to minimize harm, and clear signs that you need to stop and see a professional.

What Happens When You Sleep in Contact Lenses?

When you sleep, your eyes produce fewer tears, and your eyelids stay closed, which limits oxygen flow to the cornea. Contact lenses—especially those with lower water content or thicker materials—further reduce oxygen reaching the eye. This can lead to corneal hypoxia, where the cornea swells and becomes more vulnerable to infection.

Additionally, sleeping in lenses can cause tiny scratches on the cornea, create a breeding ground for bacteria, and increase the risk of conditions like microbial keratitis. Even a short nap can be risky, but the longer the lens stays in, the greater the danger. The safe approach is to never sleep in contacts unless your eye doctor has specifically prescribed extended-wear lenses.

• Remove lenses before any sleep, including naps.
• If you forget, remove them as soon as you wake up and let your eyes rest.
• Never sleep in disposable daily lenses; they are designed for single-day use only.

Immediate Steps If You Accidentally Sleep in Contacts

If you wake up with your lenses still in, don’t panic. First, wash your hands thoroughly, then remove the lenses carefully. If they feel stuck, do not force them. Apply a few drops of sterile contact lens solution to your eyes to rehydrate them, blink gently, and then try again.

After removal, clean the lenses with fresh solution if they are reusable (like monthly lenses). If they are daily disposables, throw them away. Give your eyes a break by wearing glasses for the rest of the day. If you notice any pain, redness, unusual discharge, or blurred vision, contact an eye care professional right away—these can be signs of an infection.

• Carry a lens case and solution with you to avoid sleeping in lenses when away from home.
• Set a bedtime reminder to remove your lenses.
• Always replace your lens case regularly to avoid contamination.

How to Reduce Risks for Reusable Lenses

If you wear monthly or other reusable lenses, you can reduce risks by maintaining a strict cleaning routine. Always use fresh solution to rub, rinse, and store your lenses. Never top off old solution, as it loses its disinfecting power. Also, follow the recommended replacement schedule—even if your lenses look fine, they can harbor protein deposits that increase infection risk.

For example, the 17Again Choco monthly lenses are designed for short-term wear and should be removed before sleeping. Similarly, the Back to Basic Macaron Brown 3-month lenses require proper care and should never be worn overnight. If you value convenience, consider daily disposables like the DooNoon Jinju Beads Burgundy 1-day lenses, which eliminate overnight cleaning concerns—just discard them if you accidentally sleep in them.

• Check your lens packaging for the recommended wear schedule.
• Never extend wear beyond the prescribed period.
• If you frequently forget to remove lenses, switch to daily disposables.

Diagnosis: Is It Safe to Sleep in Contacts?

• Symptom: Red, watery eyes upon waking: This is often a sign of mild irritation or oxygen deprivation from sleeping in contact lenses. Remove your lenses immediately and let your eyes rest. If symptoms persist for more than an hour, see an eye care professional.
• Likely Cause: Bacterial buildup or corneal hypoxia: Sleeping in lenses traps bacteria and reduces oxygen, increasing infection risk. This is why overnight wear is strongly discouraged for most lenses. Avoid repeated overnight wear; implement a strict removal routine.
• Corrective Action: Remove, clean, and rest: If you accidentally sleep in lenses, remove them as soon as you wake. Clean reusable lenses thoroughly or discard daily disposables. Wear glasses for at least 24 hours to let your eyes recover. If pain, sensitivity to light, or blurry vision develops, see a doctor immediately.

Product Considerations

• 17Again Choco: 1 Month, 2pcs/bottle, Total Dia: 14.3mm, Graphic Dia: 13.2mm, Base Curve: 8.6mm, Water Content: 38%, Material: HEMA Monthly lenses like these require proper cleaning and should never be slept in. They offer a natural chocolate-brown look for everyday wear, but you must remove them nightly to avoid complications.
• DooNoon Jinju Beads Burgundy: 1 Day, 10pcs/box, Total Dia: 14.3mm, Graphic Dia: 13.8mm, Base Curve: 8.8mm, Water Content: 43%, Material: Silicone Hydrogel Daily disposables are the safest option if you sometimes fall asleep in lenses. If you accidentally sleep in them, you can simply discard them and start fresh—no cleaning needed.

Sleeping in contact lenses is never truly safe, no matter how tiny the nap. The best way to protect your eyes is to make lens removal a non-negotiable habit. If you’re prone to forgetting, talk to your eye doctor about daily disposable options or consider keeping a backup lens case at your bedside. Your eyes will thank you.