4 to 6 hours for me. My shifts are 12 hours nights. I hate coffee, so I cant depend on that stuff. I do sleep 8 hours on my days off though.
14 F15 X5 3.5i M-Sport SG Terra, Fineline Oak, Driver Pkg, Prem. Pkg, H/K, Spare, 20" 469M Rims, Park Assist, Surround View, Shades MODS Performance Black Grille & Rocker Panel Decals, Painted Reflectors, 3M Bra, Black OEM X5 Frame