Below are some of the possible causes of sciatica pain at night:
Attention and Distraction
You may simply be more aware of your pain at night when there is less to distract you from it. This doesn’t mean the pain isn’t real — it is — only that you may be noticing it more at night than you do when you have other things to occupy your mind.
When you lay down, the weight of your body may put pressure on your nerves in ways that it doesn’t when you’re upright. This is particularly common with sciatica and other chronic pain caused by pinched or compressed nerves.
Cooler temperatures help many people sleep better. However, cold can also make sciatica pain worse.
Medication Timing and Dosage
The medications that control your pain well during the day may be wearing off too soon at night. You may then need a different dose at night.
HOW TO SLEEP BETTER WITH SCIATICA PAIN?
Try Sleeping in Different Positions
If your sciatica pain is caused by pinched or compressed nerves, adjusting your sleep position may relieve some of the pressure. For example, people with sciatica who prefer to sleep on their side often find it helpful to sleep with their affected leg on top. People with hip or knee pain may find relief by sleeping with a pillow between their legs.
Adjust the Temperature
Experiment with different room temperatures when you sleep. It may take some time to find the best temperature for you: cool enough to help you sleep, not cold enough to make your pain worse.
Get Appropriate Exercise During the Day
Exercise during the day can help reduce some kinds of chronic pain, and it may help you rest better too.
Practice Good Sleep Habits
While the day’s stimulations may distract you from your pain, they won’t help you sleep. Develop a sleep routine that helps prepare your body for rest. This might include turning off the TV and other screens 1-2 hours before bedtime, reading a book, or taking a warm bath.
Prepare Your Mind for Rest
The stress of chronic pain can make it even harder to rest. Try meditation or deep breathing exercises to lower your stress and help reduce your perception of pain. https://www.nhs.uk/conditions/sciatica/