Bursitis hurts most at night. Here is why, and what actually helps.

If you searched for bursitis at two in the morning, you already know the thing most articles leave out: the pain is not evenly distributed across the day. It is worst when you lie down, and worst again when you get up.

This piece covers what bursitis is, why the night is the hard part, what the standard care actually does, and one thing most people have not tried.

What bursitis actually is

A bursa is a small fluid-filled sac that sits between a bone and the soft tissue moving over it. You have them at the hip, shoulder, elbow and knee. Their job is to stop friction.

Bursitis is when one of those sacs becomes inflamed. The sac swells, the cushioning space narrows, and movement that used to be silent becomes painful. The two most common presentations are:

Trochanteric bursitis (hip). Pain on the outer point of the hip. Classically worse lying on that side, which is why it wakes people. Often mistaken for a hip joint problem when the joint itself is fine.

Subacromial bursitis (shoulder). Pain on the outer shoulder, worse reaching overhead or behind you. Also worse lying on that side.

Both are inflammatory rather than structural. That distinction matters, because it explains why rest alone often does not resolve it.

Why the night is the hard part

Three things stack up overnight.

Direct pressure. Lying on the inflamed side compresses the bursa for hours at a time. You cannot consciously avoid it once you are asleep.

Stillness. Inflammatory joint pain typically worsens with prolonged immobility. It is the same mechanism behind morning stiffness. Eight still hours is a long time.

Broken sleep feeds back into the pain. This is the part people underestimate. Poor sleep is well documented to lower pain thresholds, which means the same amount of inflammation is felt as more pain the next night. It becomes a loop.

That loop is why "rest it and take an anti-inflammatory" plateaus for so many people. The daytime is being managed. The night is not.

What standard care does, honestly

Rest and activity modification. Genuinely first line. Stop the aggravating movement.

Ice. Useful for acute flares, limited beyond that.

NSAIDs. Effective at reducing the inflammation, with the usual caveats about long-term use. Worth a conversation with your GP rather than an indefinite habit.

Physiotherapy. The highest-value option for hip bursitis specifically, because glute weakness is a common driver. Loading the right muscles changes the mechanics.

Corticosteroid injection. Often effective, usually not repeatable indefinitely.

Positioning. A pillow between the knees for hip bursitis, or under the arm for shoulder. Cheap, underrated, worth doing tonight.

None of that is controversial. What follows is the part most people have not come across.

The overnight variable nobody mentions

There is a body of published research on grounding, sometimes called earthing, which looks at what happens when the body is in direct conductive contact with the earth's surface charge. The studies that exist have focused mainly on inflammatory markers, sleep quality, and cortisol rhythm. Chevalier and colleagues have published the bulk of it.

To be straightforward about the evidence: these are small studies. This is not a treatment for bursitis, and nobody should present it as one. What it is, is a change to the eight hours you are currently doing nothing with, which happen to be the eight hours your joint hurts most.

The practical version is a conductive bed sheet. It goes underneath your fitted sheet, so you do not see it or feel it. A cord runs from the sheet to the earth pin of a standard wall socket. There is no electricity involved and no power drawn. The cord connects to earth only.

What to look for if you try one

If you are going to try this, the material is the part that matters and the part most buyers get wrong.

Many grounding sheets use a silver coating. Silver conducts well when new, but it tarnishes and it washes out. Conductivity drops with every wash cycle, and there is no indicator telling you it has stopped working.

Ours use 316L medical-grade stainless steel fibre woven through the fabric rather than coated onto it. It does not tarnish and it does not wash out. That is the entire reason we build them that way.

The other thing worth checking is whether the seller gives you long enough to judge it. Inflammation and sleep quality are not overnight metrics. A two-week return window is not long enough to tell you anything. Ours is a 120-night trial, and if it does not do anything for you, you send it back for a refund.