You've probably noticed it yourself: the pain is manageable during the day, and unbearable by 2 or 3am.
That's not your imagination, and it's not your neuropathy "getting worse" after dark.
It's circulation.
All day, gravity and movement help push blood down through your legs and back up again. The moment you lie flat and stay still for hours, that pumping action switches off.
Less blood reaches your feet, which means less oxygen reaches the nerves that are already damaged.
Oxygen-starved nerves misfire. That misfiring is the burning, the tingling, the electric shocks that pull you out of bed at 3am.
It isn't the mattress. It isn't the duvet. It isn't "just what neuropathy does at night."
It's a circulation problem, one that happens to peak at exactly the moment you're trying to sleep.