Manforce 50 mg is a medication used to treat erectile dysfunction (ED) in men. Its active ingredient is sildenafil citrate, a phosphodiesterase type-5 (PDE5) inhibitor that works by relaxing blood vessels and increasing blood flow to the penis during sexual stimulation. Achieving and maintaining erections can reduce stress, anxiety, and frustration related to ED, which may indirectly improve sleep quality in some men.