Healthy Body

Can you sleep with a menstrual cup or disc in? 6 common worries, debunked

Emma Harpham, Editor   |   24 Oct 2025


These days, we’re presented with a seemingly ever-growing swathe of period care options. And for the most part, we’re so here for it!

You might have already jumped on the menstrual cup or menstrual disc train. But if you’re wondering “Can you sleep with a menstrual cup in?” – the answer is yes. 

Still, it’s normal to feel a little unsure the first time you try. Maybe you’ve read a few mixed experiences online or you’re worried about leaks, flow, or even comfort. Check out these Reddit threads for some (likely) very relatable real-world experiences:

With all this in mind, we’re walking through the most common questions and worries we’ve seen about sleeping with menstrual cups and discs, paired with some real answers you can rely on.

Ready? Let’s go!

1. Can you sleep with a menstrual cup in?

Yes, you can sleep with a menstrual cup in. Menstrual cups are designed for extended wear, including overnight use.

Cups are a safe and effective alternative to tampons and pads, with one safety paper reporting no clinically relevant pH changes and no effect on toxic shock syndrome toxin-1 production, when used as directed.

Most brands, including the suuuper popular Diva Cup, can be safely worn for up to 12 hours. That makes them ideal for a better night’s sleep, no matter your flow or sleeping position.

Empty and clean your cup before bed, then reinsert it to create a good seal. Unlike tampons which absorb your flow, a cup will collect it, which means there’s less risk of drying or irritation overnight.

2. Can you sleep with the Diva Cup (or any other cup) overnight?

Yes, you can absolutely sleep with the Diva Cup or any medical-grade silicone cup overnight. The Diva Cup, like most menstrual cups, can stay in for up to 12 hours safely.

Many users say the Diva Cup for sleeping feels more comfortable than pads or tampons, especially if you move around a lot in your sleep. 

Just make sure it’s inserted properly and has formed a seal; that’s what prevents leaks while you toss and turn.

3. Does blood flow back from a menstrual cup while sleeping?

No, menstrual blood does not flow back into your uterus while you’re lying down with a menstrual cup in. 

We get that it’s a worry, especially if you sleep on your side or stomach, but your cervix will stay closed and gravity won’t reverse your natural flow!

If what you see inside in the morning is less (or more)  than what you’d typically feel is normal for you, make a note in your cycle tracker or notes app. Over time, this could help you learn more about your flow pattern and help to spot any changes.

4. Can you use a menstrual cup for 24 hours?

No, you shouldn’t wear your menstrual cup for a full 24 hours. 

Most brands recommend a maximum of 12 hours at a time. This keeps things feeling fresh, and reduces the chance of odor or irritation.

If you have a heavy flow, you might need to empty it once during the night or first thing in the morning. A quick rinse and reinsert before bed will keep you comfortable and protected all night.

5. Can you sleep with a menstrual disc in?

Yes, you can sleep with a menstrual disc in, and many people find them even easier for overnight wear. 

Because discs sit higher up in your vagina (near your cervix), they can hold more fluid, sometimes up to five times more than a tampon!

Their flexible design also makes them leak-resistant while lying in any position. If you’ve struggled with cups slipping or not sealing quite right, a menstrual disc might be a better fit for you.

6. What if I don’t feel comfortable sleeping with a menstrual cup?

You might just not get on with sleeping with a menstrual cup, and that’s okay. Some posters on r/menstrualcups mention they prefer to remove it before bed on lighter days or use a disc instead.

If you’ve tried a few nights and it still feels uncomfortable, you could try exploring other non-toxic period care options, like: 

Heard tampons might make cramps worse? That’s likely a myth. Read up on how tampons really affect cramps  – useful if you’re still figuring out what works best for your body.

Reddit’s top tips for sleeping with a menstrual cup or disc

  • Empty it before bed – A freshly emptied cup gives you maximum capacity for the night.
  • Check your seal – Run a finger around the base to make sure it’s fully opened and secure.
  • Start with comfort – Try a softer, smaller cup if you’re new to menstrual cups.
  • Practice during the day – Get familiar with inserting and removing it before trying overnight.

Better sleep, period

Sleeping with a menstrual cup or disc is completely safe, and for many of us who get periods, it’s a really comfortable, low-maintenance option. 

So yes, you can sleep with a menstrual cup in. In fact, once you try it, you might never want to go back.

Once you’ve mastered the fit and feel, you’ll likely find yourself sleeping better and waking up without leaks or discomfort.

Want to make period nights even smoother? 

  • A relaxing pre-bed ritual like a cherry juice sleep mocktail can also help you unwind while your menstrual cup takes care of the rest. 
  • We’re also loving the Clementine App’s sleep library right now for subscription-free guided wind-down sessions spanning hypnotherapy, breathwork, tapping and meditation. 

Already using a menstrual cup or disc, and want to shout about your fav brand? DM us on Instagram, we’re all ears!

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