As a general rule, an excessively firm mattress can cause pins and needles. If your mattress is too firm or does not provide pressure relief, spinal alignment, and comfort. This can place pressure on a nerve or restrict circulation, causing numbness & a pins and needles sensation.
It can happen when you sleep on your arm or hand or in a position that puts pressure on a nerve. The temporary lack of blood flow can cause numbness or pins and needles. Changing your position is typically enough to relieve your symptoms.
A mattress that’s too firm can have the same effect: Lying on the stiff surface puts pressure on your shoulders and hips. Studies show that too much pressure can cut off your circulation in some areas at night, making you toss and turn and keeping you from getting deep, restful sleep.
Common side effects involve the central nervous system and may include headaches, dizziness, nausea, memory loss, numbness and a head-to-toe tingling sensation. Some sleepers report more serious side effects involving the liver, kidney and cardiovascular systems.
When a poor mattress and uncomfortable pillows fail to provide adequate support for your neck, shoulders and back, pressure can be increased on the veins and nerves, affecting circulation and causing pain or numbness.