Period pain can make it hard to get comfortable in bed. We couldn't find guidance from health bodies on a single best sleeping position for cramps, so it's worth trying a few and keeping what feels best. Alongside that, the NHS recommends simple steps such as heat, gentle exercise and painkillers (NHS: period pain).

What period pain feels like

It's common to have pain or discomfort before or during your period. You may have painful cramps in your tummy that spread to your back and thighs. Period pain usually lasts for up to 3 days and can affect your daily activities (NHS: period pain).

Sleeping positions to try

These are comfort suggestions, not tested treatments. Pillows can help you stay in position through the night.

• On your side, knees drawn up: lie on your side and gently bring your knees towards your chest, keeping your body relaxed rather than tightly curled.
• On your side, pillow between your knees: a pillow between bent knees keeps your hips level, which may feel easier on your lower back.
• On your back, pillow under your knees: slightly bent knees may feel more comfortable for your lower back.
• Propped up: if lying flat feels uncomfortable, a couple of pillows behind your back and one under your knees may help.

If a position makes your pain worse, change it. There's no wrong way to sleep with period pain.

What else can help at night

The NHS suggests these steps for period pain (NHS: period pain):

• have a warm bath or shower, which can be a relaxing start to bedtime
• use a heat pad, or a hot water bottle wrapped in a tea towel, on your tummy
• massage your tummy and back
• do some gentle exercise during the day, such as yoga, swimming, walking or cycling
• cut down on alcohol and don't smoke, which may also help ease period pain

The NHS also lists painkillers such as paracetamol (acetaminophen) or ibuprofen (NHS: period pain). Read the leaflet, and ask a pharmacist which is suitable for you, especially if you have a health condition, are pregnant or take other medicines.

When period pain could be something else

Period pain is usually normal, but sometimes it's caused by a condition such as endometriosis or adenomyosis, where tissue like the womb lining grows in other places. Fibroids, which are growths in or around the womb, and pelvic inflammatory disease, an infection of the womb, fallopian tubes and ovaries, can also cause it (NHS: period pain).

Severe period pain that stops you doing your normal activities is one of the main symptoms of endometriosis (NHS: endometriosis). Our guide to managing endometriosis symptoms explains how it's diagnosed and treated.

When to get help

Get urgent medical advice

Ask for an urgent appointment with a GP or doctor, or contact an urgent care service, if your period pain is severe or worse than usual. This applies if painkillers haven't helped (NHS: period pain).

See a GP if

According to the NHS, see a GP or your doctor if (NHS: period pain):

• your periods become more painful, heavier or irregular
• period pain is stopping you doing your usual daily activities
• you have pain during sex, or when peeing or pooing
• you're bleeding between periods
• you've noticed a change in how much you're peeing or pooing
• you have a swollen tummy or loss of appetite
• you're losing weight without trying

The bottom line

There's no single best sleeping position for period cramps. Try lying on your side with your knees drawn up, or use a pillow between or under your knees. A warm bath, a wrapped hot water bottle and gentle exercise in the day can help too. If pain is stopping you sleeping or getting on with life, see a doctor, because treatment can help.

Not medically reviewed. This article is general information, not personal medical advice.

Sources

1. Period pain, NHS, last reviewed 18 March 2026
2. Endometriosis, NHS, last reviewed 27 August 2024