Why do hands sleep while sleeping and red spots appear?

Hands may "sleep" or feel numb during sleep due to pressure on nerves, often from maintaining an awkward position. This compression can reduce blood flow and nerve function, leading to sensations of tingling or numbness. Red spots may appear due to minor capillary damage or increased blood flow in response to pressure, which can cause temporary discoloration. Adjusting your position during sleep can help alleviate these symptoms.