New Haswell Macbook Pro 15" Sleep/Wake Rebooting fault

Since I got the new Haswell Macbook Pro 15", it has unexpectedly crashed and rebooted continuously. Sometimes it shows the grey reboot message before restarting, other times it freezes and I have to reboot by long holding down the power button.

When it is idle and asleep it still continues to reboot on it's own. Every hour or so it just reboots, gets to the log in screen, goes asleep and reboots again in a little while. The whole cycle takes about an hour, but it is consistently happening.

The report after restarting is saying that it's a Sleep/Wake error, but I'm also concerned as it happens during normal use.

Anyone else having this problem?