Comment by consp

Many laptops these days only implement s2idle and no proper s3 support which is the main culprit. My lenovo only does a day (at best) in s2idle under linux (windows is worse), when I switched it to s3 it does about 4 days as expected for the amd cpu. Fortunately this has a switch in the bios (which says windows won't work afterwards which is cow manure). You get the added benefit that windows can't phone home when you close the lid.