Microsoft this week fixed the crashing display driver issue found on the new Surface Pro 4 and Surface Book. The problem stems from the early adoption of Intel's new Skylake chipset, which is causing issues even for non-Microsoft PC manufacturers. One problem still exists, however, which is the sleep/standby states for these devices.
Windows Central has covered the topic before, and it can be quite frustrating. Essentially the Surface goes into standby (low power state) but not to a sufficient level. As a result, the CPU could stay active while the Surface is in transit (e.g. your bag) or just lying there resulting in a heated and battery depleted device. This sleep state issue is not universal and seemingly random.
Microsoft is aware of the situation, which should not be too hard due to the level of complaints. Now, a representative from the team has spoken on the matter in the Community Forums:
Full story from the WindowsCentral blog...