Numbness of the feet at night makes it difficult to fall asleep, which may be related to poor local blood circulation or caused by diabetic peripheral neuropathy, lumbar spondylolisthesis and other reasons. 1. Poor local blood circulation: At night when sleeping, if the sleeping posture is not appropriate, resulting in feet long time pressure, resulting in poor local blood circulation of the feet, may cause numbness of the feet, difficult to sleep. 2. Diabetic peripheral neuropathy: because the disease is easy to lead to the patient’s peripheral nerve damage, resulting in sensory deficits in the area innervated by the damaged nerves, which may cause numbness of the feet at night, difficult to sleep, may also be accompanied by pain and other symptoms. 3. Lumbar spine lesions: commonly found in lumbar disc herniation, lumbar spinal stenosis and other diseases, may lead to sciatic nerve root pressure, thus causing numbness of the feet, may lead to numbness of the feet at night, difficult to sleep, may also be accompanied by numbness of the legs, weakness, lumbago and other symptoms. If the symptoms persist and cannot be relieved, you should consult a doctor as soon as possible to diagnose the cause and then give targeted treatment.